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humidity sensor detect

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Wireless Fire Alarm Smoke Detector Sound and Light Alarm High Sensitivity Detector for Home Security

Wireless Fire Alarm Smoke Detector Sound and Light Alarm High Sensitivity Detector for Home Security
Humidity: ≦90% Radio Frequency: 433.92MHZ FM Mode: ASK Transmit Power: 10db Radio Distance: ≦120m (open distance) Implementation Standards: GB 20517-2006 3. Installation (1) Add the smoke detector ...

Gas Leakage Detector for Home Fire Alarm LPG Gas Leak Sensor with Solenoid Valve and Manipulator

Gas Leakage Detector for Home Fire Alarm LPG Gas Leak Sensor with Solenoid Valve and Manipulator
Detecting Gas: CH4 Range:0-25%LEL Alarm Setting Value:8%LEL Alarm Mode:Audible and visual alarm,wireless transmission Frequencymaterial:433MHz/868MHz/LoRa433MHz/LoRa868MHz Sensor Life: 3years Working ...
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