1. Real-time Remote Monitoring: Whenever and wherever you are, once vibration sensor detects shock or motion, you will receive a push notification by smart phones in Tuya Smart Life App. Keep your house safe all the time.2. Intelligent Linkage Alarm with More Sensors: When detect motion, vibration,drop,light is on automatically for smart automation; or even intelligently linkage to your smart curtain switch for opening curtains when detecting vibration.Working voltage:DC 3V.Standby current:less than equal 10uA.Alarm current:less than equal 20mA.Communication:ZigBeeTransmission distance:10-30 meters(no obstruction indoor).LED indicator:YES.Battery:1.5V AAA dry batter x 2 (not included).Working temperature:-10-50.Working humidity:less than equal 95% (no condensation).Update frequency:half an hour.Note:TheZigBee Version model requires a Tuya ZigBee gateway to function properly.Colour:WhiteMaterial:PlasticPackage Contents:1 * Smart Vibration SensorOnly 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.