{"id":11801,"date":"2026-08-27T22:12:16","date_gmt":"2026-08-27T20:12:16","guid":{"rendered":"https:\/\/www.sigalou-domotique.fr\/?p=11801"},"modified":"2026-08-29T15:13:53","modified_gmt":"2026-08-29T13:13:53","slug":"je-teste-le-testeur-de-tension-sans-contact-ktl01-de-kaiweets","status":"publish","type":"post","link":"https:\/\/www.sigalou-domotique.fr\/en\/je-teste-le-testeur-de-tension-sans-contact-ktl01-de-kaiweets","title":{"rendered":"I'm testing the Kaiweets KTL01 non-contact voltage tester"},"content":{"rendered":"

\ud83c\udfaf Electrical safety before home automation!!<\/h2>\n

I will be honest with you: I have long been afraid to touch my electrical circuits. A few years ago, when I wanted to change a socket, I neglected to check whether the circuit breaker was properly cut.<\/p>\n

Result: an unpleasant \u26a1 discharge that shook me well and reminded me that electricity does not forgive. Since that day, before each intervention, I have become paranoid.<\/p>\n

\"\"<\/p>\n

And that\u2019s exactly why I have the Kaiweets KTL01<\/strong><\/a>, a non-contact voltage tester that prevents me from reliving this moment.<\/p>\n

On this blog, I test a lot of Zigbee equipment, sensors and home automation modules. But before installing them, you often have to touch electricity. Here is my full feedback after several weeks of use.<\/p>\n

\u26a1 Why this tester in my home automation toolbox<\/h2>\n

After my chestnut, I changed the way I worked.<\/p>\n

No more trusting the circuit breaker alone.<\/p>\n

I need to systematically check that there is no tension before touching a wire.<\/p>\n

Whether it is to install a Zigbee jack, a Sonoff module, a siren or a sensor, I always start by checking that the circuit is off.<\/p>\n

The Kaiweets KTL01<\/strong><\/a> offers me this security: it detects the presence of an electric field linked to an alternative voltage, without contact, directly through the cable insulation.<\/p>\n

And the icing on the cake: it makes it possible to compare the intensity of the signal between phase and neutral, which helps me with wiring. No more the stress of wondering if I cut the right circuit.<\/p>\n

\ud83c\udfe2 Who is Kaiweets?<\/h2>\n

\"\"<\/p>\n

Kaiweets is a Chinese brand specialising in electrical measuring devices and tools for both professionals and private individuals.<\/p>\n

The brand says it was created in 2018. However, the first legal traces I found date back to 2019, when Shenzhen Xinsuicheng Trading Co., Ltd., a company that owns Kaiweets brands and markets the products on different platforms, was founded in Shenzhen.<\/p>\n

For the KTL01<\/strong><\/a>, the manual designates as manufacturer Shenzhen Wanhe Innovation Technology Co., Ltd., also installed in Bao\u2019an District in Shenzhen. The tester is marked \"Made in China\". However, it is necessary to remain precise: the documentation identifies Kaiweets as a manufacturer, but it is not clear whether the plant is owned directly by Kaiweets or whether it is an industrial partner in charge of production.<\/p>\n

Kaiweets also has a contact office in Hong Kong under the name KAIWEETS Technology Limited.<\/p>\n

For Europe, the mark indicates that it relies on local stocks to shorten delivery times, but it does not publish the precise address of its European warehouse. The Manual of the KTL01<\/strong><\/a> also mentions CET Product Service Sp. z o.o. in Poland as the European representative. It is a regulatory relay for the European Union, not necessarily a distributor or an after-sales service.<\/p>\n

On the commercial side, Kaiweets sells directly on its site and also goes through platforms such as Amazon, TikTok Shop or ManoMano. The brand is also looking for wholesalers and distributors and runs an affiliate programme. We are therefore facing a recent Chinese brand, mainly focused on international e-commerce, with declared manufacturing in Shenzhen and logistics and regulatory relays in Europe.<\/p>\n

\ud83d\udd0d Why I chose the KTL01 from the Kaiweets<\/h2>\n

Kaiweets offers several voltage testers, each with its own specificities. Here is a precise comparison of the models I have identified:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nType<\/th>\nDetection<\/th>\nNCV Beach<\/th>\nDual-range<\/th>\nPhase\/neutral<\/th>\nScreen<\/th>\nSecurity<\/th>\n<\/tr>\n<\/thead>\n
KTL01<\/strong><\/a><\/strong><\/td>\nNCV Pen Tester<\/strong><\/td>\nContactless<\/strong><\/td>\n12-1000V AC<\/strong><\/td>\nYes (12-1000V \/ 70-1000V)<\/strong><\/td>\nYes (by intensity)<\/strong><\/td>\nColor LCD % + bar<\/strong><\/td>\nCAT IV 1000V<\/strong><\/td>\n<\/tr>\n
HT100S<\/td>\nNCV Pen Tester<\/td>\nContactless<\/td>\n12-1000V AC<\/td>\nYes (12-1000V \/ 70-1000V)<\/td>\nYes (by intensity)<\/td>\nLCD % + bar<\/td>\nCAT III 1000V \/ CAT IV 600V<\/td>\n<\/tr>\n
HT100<\/td>\nNCV Pen Tester<\/td>\nContactless<\/td>\n12-1000V AC<\/td>\nYes (12-1000V \/ 48-1000V)<\/td>\nYes (by intensity)<\/td>\nLCD + bar<\/td>\nCAT III 1000V \/ CAT IV 600V<\/td>\n<\/tr>\n
VT200<\/td>\nNCV Pen Tester<\/td>\nContactless<\/td>\n12-1000V AC<\/td>\nYes<\/td>\nYes (by intensity)<\/td>\nLED Bars<\/td>\nCAT III 1000V \/ CAT IV 600V<\/td>\n<\/tr>\n
KTS01<\/td>\nScrewdriver Tester<\/td>\nContact + NCV<\/td>\n3-300V AC<\/td>\nNo<\/td>\nYes (by intensity)<\/td>\nLCD indicator<\/td>\nNot specified<\/td>\n<\/tr>\n
KTS02<\/td>\nScrewdriver Tester<\/td>\nContact + NCV<\/td>\n3-300V AC<\/td>\nNo<\/td>\nYes (by intensity)<\/td>\nLCD indicator<\/td>\nNot specified<\/td>\n<\/tr>\n
ST100<\/td>\nSmart Multimeter Pen<\/td>\nContact + NCV<\/td>\n12-1000V AC<\/td>\nNo<\/td>\nYes (by intensity)<\/td>\nLCD 4000 counts<\/td>\nCAT III 600V<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

My choice of KTL01<\/strong><\/a> It focused on a number of criteria:<\/strong><\/p>\n