[Smart linkage]The vibration sensor can be used in conjunction with Tuya products to achieve smart linkage for the whole house (if you have other Tuya smart products, such as Tuya bulbs, set the vibration sensor to turn on the Tuya bulb when it is detected in Add Automation.) [Real-time remote monitoring]Whenever and wherever the vibration sensor detects vibration or motion, you receive a push notification on your smartphone in the Tuya Smart Life App as real-time monitoring. Always the safety of your home. When vibration is detected, the sensor flash a red indicator light. [Vibration reminder and low battery alarm]Enable the vibration reminder and low battery reminder functions in the Tuya Smart App to truly monitor the safety of your home. Powered by 2 batteries, long standby time, and low power consumption. Sensitivity setting]You can set the sensitivity in the App according to your needs, with a wide range from low to high support history recording to monitor the status of your home more accurately, and update every half an hour. [Smart linkage alarm for more sensors]When motion, vibration, or fall is detected, the light automatically turn on to achieve smart automation you can even smartly link your smart curtain switch to open the curtain when vibration is detected. Working voltage: DC 3V Standby current: 10uA Alarm current: 20mA Communication method: ZigBee 3.0 Transmission distance: 10-30 meters (no obstacles indoors) LED indicator: Yes Battery: 2 x 1.5V AAA dry battery (not included) Working temperature: -10-50 Working humidity: 95percent (no condensation) Note: 1. First you need to connect to the ZIGBEE 3.0 gateway to remotely control it via 3G or 4G or WiFi on your mobile phone. The WIFI version can be directly connected to the mobile phone for remote control. Colour:White Material:ABS Package Contents: 1 x Smart Vibration sensor Only the above package content, other products are not included. Note: Light reflection 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.