Chatthen WiFi Window Alarm Sensor, Tuya Smart Door Alarm with Light Alarm, Home Wireless Security Alarm System with Intelligent Linkage, Timing, APP Remote Control, Compatible with Alexa/Google Home

Why choose us? Compared with the traditional alarm, the new wifi sound and light alarm supports many new functions. For example, APP remote alarm notification, cell phone setting alarm time, remote view door and window opening and closing status, alarm duration adjustment, volume adjustment, no delay, instant alarm. It is a must-have product for your smart home. Parameters? Wifi:2.4GHz Operating thermomter:-10?~50? Operating humidity: ?90%RH Size : 90* 32*18mm(3.54*1.25*0.71inch) Weight:75g(0.16lb) Material:ABS Battery :2*AAA (Exclude) Package Included? Door Alarm*1 3M adhesive*1 Instruction manual *1