• Product : Zigbee Heat Detector
• Model / Reference : HESZB-120 (Develco HESZB-120, product code 20209700)
• Type : Heat detector with integrated siren (fire detection by rapid temperature rise, no smoke detection)
• Protocol : Zigbee 3.0 (2.4 GHz) – compatible Zigbee home automation gateways (Zigbee Home Automation / Zigbee2MQTT, etc.)
• Main functions : Heat fire detection, built-in audible alarm, temperature sensor, battery level ratio, low battery alert
• Noise level : 85 dB at 3 m
• Temperature sensor : Range 0 to +50°C, resolution 0.1°C, accuracy ±0.5°C
• Power supply : 1 x replaceable CR123A battery
• Autonomy : Up to 5 years (report every 5 minutes, under normal conditions)
• Battery indicators : Battery level ratio, low battery warning
• Dimensions : Ø 65 x 40 mm
• Installation : Ceiling fastening on base (screwed mounting recommended for fire safety)
• Radio range : Zigbee 2.4 GHz, sensitivity -98 dBm, emission power +8 dBm
• Operating temperature : 0 to +50°C
• Operating humidity : Up to 95 % HR, non-condensing
• Index of protection : IP20 (indoor use only)
• Recommended use : Rooms where smoke detectors trigger false alarms (kitchen, garage, technical room, dusty or wet areas, near a chimney, etc.)
• Certifications : Compliant with CE, RoHS, REACH, certified DIN EN 14604 and DIN 14676

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