{"id":11018,"date":"2026-03-13T21:36:57","date_gmt":"2026-03-13T19:36:57","guid":{"rendered":"https:\/\/www.sigalou-domotique.fr\/?p=11018"},"modified":"2026-07-04T10:34:44","modified_gmt":"2026-07-04T08:34:44","slug":"je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient","status":"publish","type":"post","link":"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient","title":{"rendered":"I'm testing Frient's Zigbee HESZB-120 heat detector"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-6ae4d82c935d6\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6ae4d82c935d6\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%94%A5_Mes_objectifs_avec_ce_detecteur\" >\ud83d\udd25 My lenses with this detector<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%94%8D_Fiche_technique\" >\ud83d\udd0d Technical data sheet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%93%A6_Je_verifie_le_modele_recu\" >\ud83d\udce6 I check the received model<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%9B%92_Ou_jachete_cet_equipement\" >\ud83d\uded2 Where do I buy this equipment?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%93%A6_Deballage_et_premieres_impressions\" >\ud83d\udce6 Unpacking and First Impressions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%93%8D_Ou_je_linstalle\" >\ud83d\udccd Where I install it<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%94%A7_Ouverture_du_boitier\" >\ud83d\udd27 Opening the case<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%A7%A9_Je_mets_la_pile_et_jappaire_dans_Zigbee2MQTT\" >\ud83e\udde9 I put the stack and pair in Zigbee2MQTT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%93%A1_Expositions_Zigbee2MQTT_du_detecteur\" >\ud83d\udce1 Exhibitions Zigbee2MQTT Detector<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%9A%A8_Detection_dincident\" >\ud83d\udea8 Incident Detection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%A9%BA_Etat_de_sante_du_detecteur\" >\ud83e\ude7a Detector Health Status<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%94%8B_Mesures_et_alimentation\" >\ud83d\udd0b Measurements and Food<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%8F%A0_Integration_dans_Home_Assistant\" >\ud83c\udfe0 Integration in Home Assistant<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%F0%9F%94%8B_Installation_et_suivi_des_piles\" >\ud83d\udd0b Installation and monitoring of batteries<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-detecteur-de-chaleur-zigbee-heszb-120-de-frient\/#%E2%AD%90_Mon_avis_apres_mise_en_service\" >\u2717 My opinion after commissioning<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%94%A5_Mes_objectifs_avec_ce_detecteur\"><\/span>\ud83d\udd25 My lenses with this detector<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>One evening in the kitchen, my smoke detector goes off for the umpteenth time because of the smoke from chopped steaks.<\/p>\n<p>Tired of false alerts, I am looking on home automation forums for a reliable solution.<\/p>\n<p>This is where I discover the <strong>Zigbee 3.0 Smart Heat Detector <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/heszb-120\/\" target=\"_blank\" rel=\"noopener\">HESZB-120<\/a> Frient 's<\/strong>.<\/p>\n<p>It only reacts to excessive heat, which seems perfect for my kitchen, garage and living room with fireplace.<\/p>\n<p>I order from Domadoo because he's on sale.<\/p>\n<p>It seems perfect to me: Reliable push alerts, powerful siren of 85 decibels and long maintenance-free autonomy. I'm testing all this \u2026<!--more--><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%94%8D_Fiche_technique\"><\/span>\ud83d\udd0d Technical data sheet<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><strong>Exact model<\/strong> : <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/heszb-120\/\" target=\"_blank\" rel=\"noopener\">HESZB-120<\/a>.<\/li>\n<li><strong>Type of equipment<\/strong> : Heat detector only, smoke-free.<\/li>\n<li><strong>Communication Protocol<\/strong> : Zigbee 3.0 for hubs like Zigbee2MQTT or ZHA.<\/li>\n<li><strong>Power supply<\/strong> : CR123A battery 3 volts, with 5 years estimated autonomy.<\/li>\n<li><strong>Physical dimensions<\/strong> : 65 millimeters in diameter, 40 millimeters high, for 90 grams.<\/li>\n<li><strong>Conditions of use<\/strong> : 0 to 50 degrees Celsius, with an accuracy of \u00b10.5 degrees, and a maximum humidity of 95 percent.<\/li>\n<li><strong>Detection function<\/strong> : Alarm at 58 degrees Celsius or in case of rise of 8 degrees per minute, with a siren of 85 decibels.<\/li>\n<li><strong>Radio range<\/strong> : Sensitivity -98 dBm, emission +8 dBm, with a visible red light diode.<\/li>\n<li><strong>Standards and certifications<\/strong> : CE, RoHS, REACH, EN54 Europe.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%93%A6_Je_verifie_le_modele_recu\"><\/span>\ud83d\udce6 I check the received model<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11017 size-medium\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/detectchaleurzigbee-300x300.png\" alt=\"Heat detector box Frient HESZB-120\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/detectchaleurzigbee-300x300.png 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/detectchaleurzigbee-150x150.png 150w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/detectchaleurzigbee-768x768.png 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/detectchaleurzigbee-600x600.png 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/detectchaleurzigbee-100x100.png 100w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/detectchaleurzigbee.png 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<ul>\n<li><strong>On the packaging carton<\/strong> : Frient green box, I note the serial number and the reference for the warranty.<\/li>\n<li><strong>Content of accessories<\/strong> : I unpack the CR123A battery, the base, the screws, the ankles and the leaflet in French.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%9B%92_Ou_jachete_cet_equipement\"><\/span>\ud83d\uded2 Where do I buy this equipment?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Here is the link to the page dedicated to Frient <a href=\"https:\/\/www.sigalou-domotique.fr\/en\/product\/heszb-120\/\" target=\"_blank\" rel=\"noopener\">HESZB-120<\/a>.<\/p>\n<p>I listed the sellers and the prices compared.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%93%A6_Deballage_et_premieres_impressions\"><\/span>\ud83d\udce6 Unpacking and First Impressions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Package received at lunchtime, I am looking forward to opening the package.<\/p>\n<p>The green box is very serious. This is the usual colour of Frient.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%93%8D_Ou_je_linstalle\"><\/span>\ud83d\udccd Where I install it<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>I chose it for my kitchen, but I discovered that it is also suitable for dusty places such as garages. Basically, it is intended for places where a smoke detector may trigger false positives. This is what the package leaflet recommends:<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11051\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/emplacement-detecteur-fumee-img2-768x498-1.png\" alt=\"\" width=\"768\" height=\"498\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/emplacement-detecteur-fumee-img2-768x498-1.png 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/emplacement-detecteur-fumee-img2-768x498-1-300x195.png 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/emplacement-detecteur-fumee-img2-768x498-1-600x389.png 600w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/p>\n<p>It can be installed either on the ceiling or on a wall:<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11027\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-200124.png\" alt=\"Installation of the Frient heat detector on the ceiling\" width=\"538\" height=\"204\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-200124.png 538w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-200124-300x114.png 300w\" sizes=\"auto, (max-width: 538px) 100vw, 538px\" \/><\/td>\n<td style=\"width: 50%;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11028\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-200202.png\" alt=\"Wall-mounted installation of the Frient heat detector\" width=\"339\" height=\"358\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-200202.png 339w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-200202-284x300.png 284w\" sizes=\"auto, (max-width: 339px) 100vw, 339px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%94%A7_Ouverture_du_boitier\"><\/span>\ud83d\udd27 Opening the case<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The opening of the case is ultimately very simple. I looked for a moment, because the leaflet does not mention it. You just have to hold it in one hand and unscrew counterclockwise with the other hand. The case then opens without difficulty. An inscription on plastic would have been welcome.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11020 size-medium\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-300x300.jpg\" alt=\"Opening of the Frient heat detector housing\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-300x300.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-1024x1024.jpg 1024w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-150x150.jpg 150w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-768x768.jpg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-1536x1536.jpg 1536w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-2048x2048.jpg 2048w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-600x600.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194450-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>I unfold the label and there I find a rather funny detail. The manufacturer has planned to make me work: he asks me to stick the label that corresponds to my tongue on the detector. I'm doing it, all proud. That's it, my detector is French, or at least French.<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 33.3333%;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11021 size-medium\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194520-225x300.jpg\" alt=\"Frient Detector Multilingual Label\" width=\"225\" height=\"300\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194520-225x300.jpg 225w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194520-768x1024.jpg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194520-1152x1536.jpg 1152w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194520-1536x2048.jpg 1536w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194520-600x800.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194520-scaled.jpg 1920w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/td>\n<td style=\"width: 33.3333%;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11022 size-medium\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194532-300x260.jpg\" alt=\"Choice of the label in French on the Frient detector\" width=\"300\" height=\"260\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194532-300x260.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194532-1024x887.jpg 1024w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194532-768x665.jpg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194532-1536x1331.jpg 1536w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194532-600x520.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194532.jpg 1796w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/td>\n<td style=\"width: 33.3333%;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11025 size-medium\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-300x300.jpg\" alt=\"French label glued to the Frient heat detector\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-300x300.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-1024x1024.jpg 1024w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-150x150.jpg 150w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-768x768.jpg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-1536x1536.jpg 1536w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-2048x2048.jpg 2048w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-600x600.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194554-1-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The battery is protected by a label that I remove. This seems to be a good quality battery.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11024 size-medium\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-300x300.jpg\" alt=\"CR123A battery of Frient heat detector\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-300x300.jpg 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-1024x1024.jpg 1024w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-150x150.jpg 150w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-768x768.jpg 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-1536x1536.jpg 1536w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-2048x2048.jpg 2048w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-600x600.jpg 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/20260313_194620-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>I remove the insulation from the CR123A battery, with the positive pole up. I turn the base counterclockwise, easily and without tools. I then see the central button and thermistor. I briefly support: the siren rings loudly for 3 seconds and the red diode blinks. The battery goes back well to 100 percent, with a voltage of 3 volts. I am also testing the silence: the 3 beeps confirm that everything is ready for pairing.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%A7%A9_Je_mets_la_pile_et_jappaire_dans_Zigbee2MQTT\"><\/span>\ud83e\udde9 I put the stack and pair in Zigbee2MQTT<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>In Zigbee2MQTT, I enable pairing.<\/li>\n<li>I'll place the battery. The red diode lights up once, then there is a pause, then it flashes a few times.<\/li>\n<li>And this is the tragedy: unsupported.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11029\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-201901.png\" alt=\"First unsupported pairing of the HESZB-120 detector in Zigbee2MQTT\" width=\"600\" height=\"202\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-201901.png 935w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-201901-300x101.png 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-201901-768x259.png 768w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-201901-600x202.png 600w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<ul>\n<li>I read the \u2026 documentation<\/li>\n<li>I start again, remove the unsupported equipment, then press the single button on the case.<\/li>\n<li>I'm having a hard time. Sometimes it blinks, sometimes no, sometimes twice and then nothing. There is almost no information in the manual. And then, after a while:<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11030\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-203240.png\" alt=\"Successful pairing of Frient heat detector in Zigbee2MQTT\" width=\"599\" height=\"453\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-203240.png 655w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-203240-300x227.png 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-203240-600x453.png 600w\" sizes=\"auto, (max-width: 599px) 100vw, 599px\" \/><\/p>\n<ul>\n<li>It is good, it is integrated. Wow!<\/li>\n<li>I call it \u201cCooking Heat Detector\u201d.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11031\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-203548.png\" alt=\"Rename of the Frient heat detector in Zigbee2MQTT\" width=\"342\" height=\"92\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-203548.png 342w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-203548-300x81.png 300w\" sizes=\"auto, (max-width: 342px) 100vw, 342px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%93%A1_Expositions_Zigbee2MQTT_du_detecteur\"><\/span>\ud83d\udce1 Exhibitions Zigbee2MQTT Detector<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Once the detector is paired correctly in Zigbee2MQTT, I always look at the full list of exposures.<\/p>\n<p>She is the one who tells me exactly what information I can use in Home Assistant for my cards, graphics and especially my security automations.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11035\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204205.png\" alt=\"First part of the Zigbee2MQTT exhibitions of the Frient HESZB-120 detector\" width=\"735\" height=\"728\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204205.png 735w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204205-300x297.png 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204205-150x150.png 150w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204205-600x594.png 600w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204205-100x100.png 100w\" sizes=\"auto, (max-width: 735px) 100vw, 735px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-11036\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204217.png\" alt=\"Second part of the Zigbee2MQTT exhibitions of the Frient HESZB-120 detector\" width=\"734\" height=\"403\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204217.png 725w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204217-300x165.png 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-204217-600x329.png 600w\" sizes=\"auto, (max-width: 734px) 100vw, 734px\" \/><\/p>\n<p>Here's what my Frient HESZB-120 heat detector looks like in Zigbee2MQTT.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%F0%9F%9A%A8_Detection_dincident\"><\/span>\ud83d\udea8 Incident Detection<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>smoke<\/strong> (binary type): indicates whether the detector has detected smoke. The value is in the property <code>smoke<\/code> of the published status. When <code>smoke<\/code> is worth <code>true<\/code>, this means that an alarm has been detected by the detector and it is on alert. When <code>false<\/code>, Everything is normal. This is the main information to be monitored to trigger fire warning scenarios in Home Assistant.<\/li>\n<li><strong>alarm<\/strong> (Enum type): allows to manually control the siren of the detector. Possible values are usually <code>OFF<\/code> and <code>START<\/code>. This is very convenient to test the alarm remotely or to integrate it into an overall \u201cintrusion\u201d scenario in addition to other sensors. On this exposure, the manual trigger works well, but a question mark remains displayed on the screen. There is therefore no feedback on the actual state of the siren, which is unfortunate.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11034\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-205106.png\" alt=\"Manual siren control in Zigbee2MQTT\" width=\"233\" height=\"101\" \/><\/p>\n<ul>\n<li><strong>test<\/strong> (binary type): indicates whether the detector is currently in test mode. When it moves to <code>true<\/code>, this means that the test button has been activated or a test has been triggered. When <code>false<\/code>, no tests are in progress.<\/li>\n<li><strong>max_duration<\/strong> (numerical type): defines the maximum period during which the siren can remain active when triggered manually. The allowed interval ranges from 0 to 600 seconds. In my case, this value is set by default to 240 seconds, or 4 minutes.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%F0%9F%A9%BA_Etat_de_sante_du_detecteur\"><\/span>\ud83e\ude7a Detector Health Status<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>reliability<\/strong> (text type): indicate the reason for any default. When all goes well, it's worth <code>_fault _detected<\/code>. In the event of a hardware problem or internal failure, another descriptive value appears.<\/li>\n<li><strong>fault<\/strong> (binary type): indicates whether the detector is in a fault state. When <code>true<\/code>, the detector signals an internal problem, e.g. electronic or hardware. When <code>false<\/code>, no defects are detected.<\/li>\n<li><strong>battery_low<\/strong> (binary type): indicates whether the battery is almost empty. If it is worth <code>true<\/code>, the battery must be replaced quickly. If it is worth <code>false<\/code>, the battery is considered sufficient.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"%F0%9F%94%8B_Mesures_et_alimentation\"><\/span>\ud83d\udd0b Measurements and Food<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>temperature<\/strong> (numerical type): raises the temperature measured by the detector. The unit is the degree Celsius. In the device-specific options, Zigbee2MQTT offers two very practical parameters: <code>temperature_calibration<\/code> to correct any measurement misalignment, and <code>temperature_precision<\/code> to choose the number of decimal places displayed, from 0 to 3 digits after the decimal point.<\/li>\n<li><strong>battery<\/strong> (numerical type): gives the remaining battery as a percentage. This is an estimated percentage, based on the battery voltage.<\/li>\n<li><strong>voltage<\/strong> (numerical type): indicates the voltage of the battery in millivolts. The unit is millivolt.<\/li>\n<li><strong>linkquality<\/strong> (numerical type): reflects the quality of the Zigbee signal between the detector and the coordinator or router relaying it. The value is expressed in LQI. The higher the number, the better the quality of the radio link.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%8F%A0_Integration_dans_Home_Assistant\"><\/span>\ud83c\udfe0 Integration in Home Assistant<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11037\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-205427.png\" alt=\"Proposed Frient Detector Update in Home Assistant\" width=\"596\" height=\"297\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-205427.png 596w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-205427-300x149.png 300w\" sizes=\"auto, (max-width: 596px) 100vw, 596px\" \/><\/p>\n<p>I'm going to Home Assistant. I have a notification waiting for me to propose an update of the new detector. I'm launching this update. Home Assistant tells me 20 minutes, I can go have a coffee \u2026<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11038\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-205742.png\" alt=\"Estimated time to update the Frient detector in Home Assistant\" width=\"594\" height=\"301\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-205742.png 594w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-205742-300x152.png 300w\" sizes=\"auto, (max-width: 594px) 100vw, 594px\" \/><\/p>\n<p>Finally, at 1%, the interface shows me another 22 minutes. I'll have lunch, we'll see later \u2026.<\/p>\n<p>In Home Assistant, I then find my device.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11039\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-210026.png\" alt=\"Frient Heat Detector Device Visible in Home Assistant\" width=\"662\" height=\"589\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-210026.png 662w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-210026-300x267.png 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-210026-600x534.png 600w\" sizes=\"auto, (max-width: 662px) 100vw, 662px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11040\" src=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-210118.png\" alt=\"Entities of the Frient heat detector in Home Assistant\" width=\"665\" height=\"630\" srcset=\"https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-210118.png 665w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-210118-300x284.png 300w, https:\/\/www.sigalou-domotique.fr\/wp-content\/uploads\/2026\/03\/Capture-decran-2026-03-13-210118-600x568.png 600w\" sizes=\"auto, (max-width: 665px) 100vw, 665px\" \/><\/p>\n<p>I have the information <em>Linkquality<\/em> and <em>Last seen<\/em> which I use on my screen:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.sigalou-domotique.fr\/en\/je-surveille-mon-reseau-zigbee-linkquality-last_seen\/\" target=\"_blank\" rel=\"noopener\">I visually monitor my Zigbee network (Linkquality &amp; Last_seen)<\/a><\/li>\n<\/ul>\n<p>I will deactivate a lot of exhibitions that are not useful to me.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%F0%9F%94%8B_Installation_et_suivi_des_piles\"><\/span>\ud83d\udd0b Installation and monitoring of batteries<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>As I always do on my feedback, I note here the place of installation and the date of installation or change of batteries.<\/p>\n<ul>\n<li><strong>Installed on<\/strong> : March 13, 2026 in the kitchen.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"%E2%AD%90_Mon_avis_apres_mise_en_service\"><\/span>\u2717 My opinion after commissioning<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>What impresses me<\/strong> : This is the idea of having designed a detector that does not react to the cooking of chopped steaks that emit smoke. It is the change in temperature that makes it possible to detect a nascent fire, and I find this idea excellent. The test when you press it is also very well thought out. Finally, the possibility of triggering the siren remotely (even if there is only one) is interesting.<\/p>\n<p><strong>What disappoints a little<\/strong> : Integration has been a bit difficult, but sometimes it is simply a lack of luck at the time of pairing.<\/p>\n<p><strong>My personal verdict<\/strong> : Great discovery! Security kitchen and garage without stress.<\/p>","protected":false},"excerpt":{"rendered":"<p>\ud83d\udd25 My objectives with this detector One evening in the kitchen, my smoke detector goes off for the umpteenth time because of the smoke from chopped steaks. Tired of false alerts, I am looking on home automation forums for a reliable solution. This is where I discover the smart heat detector Zigbee 3.0 HESZB-120 from [\u2026]<\/p>","protected":false},"author":1,"featured_media":11006,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14,53,108],"tags":[],"class_list":["post-11018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-domotique","category-home-assistant","category-test-produit"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/posts\/11018","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/comments?post=11018"}],"version-history":[{"count":0,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/posts\/11018\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/media\/11006"}],"wp:attachment":[{"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/media?parent=11018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/categories?post=11018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sigalou-domotique.fr\/en\/wp-json\/wp\/v2\/tags?post=11018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}