1.Tuya Smart ZigBee Smoke Detector:A Tuya ZigBee Wireless Hub is a must to work with the smoke detector sensor,as well as a variety of ZigBee smart products, which is proved to be the bridge and control center for smart homes and plays an irreplaceable role for all ZigBee products and realizes the whole linkage of your house.Simply add the sensor into the ZigBee hub after adding the hub into Smart Life/Tuya App.2. maze design, fast perception of fire supported that ensures high sensitivity of smoke and temperature, effectively reduce false positive rate and make more accurate.It adopts the preferred flame-retardant material shell, which has the characteristics of radiation resistance, heat resistance and impact.Besides,the smoke detector provides with sound alarm and light flash.3.App Push Notifications and Control:Compatible with Smart Life and Tuya App enables the timely discovery of danger of fire or smoke and real- time notifications to your smart phone.No need to be connected to the alarm host that is able to work independently with ZigBee hub connected for informing alarm situation.And even low battery indication in smart phone App.4.Low 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,together with the smart button for testing and sound silence manually,which is applicable for residential,shopping malls,warehouses, etc. with potential fire danger.5.Real-time Voice Alarm Prompt with Wide Range:This smart smoke detector owns the wide monitoring range of3m ahead,and it will intelligently and quickly issue more than 85dB alarm sound and push notification to you App automatically; Communication Mode:ZigBeeOperating :DC 3V(CR123A)Working Temperature:-10Celsius~+55CelsiusWorking Humidity:10%-95%RHInstallation:BracketColour:WhiteMaterial:plasticPackage Contents:1 x Tuya Smart Zigbee Smoke Detector SensorOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.