Smart Wifi Temperature and Humidity Sensor with Siren
$39.99
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USB Siren Alarm Battery: CR123A x 1 Kancy Smart Sensor Siren Alarm Standby time:5 years Use time:1 years (25 times/day) 2years(10 times/day) USB Siren Alarm Sound Intensity: 100DB wireless Type:2.4GHz Protocol:IEEE 802.11b/g/n WiFi USB Siren Alarm Wifi distance:45m Operating Temperature:0℃~ 40℃ (32°F~104°F) Operating Humidity: 20% ~ 85%
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