Tuya Smart home Security Alarm System Zigbee Smoke Detector Sensor Smartlife App Notification Battery-power Fire Protection

Low power design and long battery life for this ZigBee new version with low voltage monitoring prompt function available. Remotely self-test for the smoke security offers much convenience,as well as manual muting,is smartly supported via smart phone app with alarm situation it owns the wide monitoring range of 3m ahead it will intelligently and quickly issue more than 85dB alarm sound A ZigBee Wireless Gateway Hub is needed includes full 2-year warranty and 60-day refund for complete satisfaction..syi