Designed with user safety in mind, the vibration sensor is an excellent choice for families with children. It can be used to monitor doors and , ensuring that kids are safe and secure. The sensor's ability to detect vibrations and send instant alerts helps parents keep track of their children's movements and respond quickly to any potential dangers. Features -Color:White -Material:ABS -Size:7.10X2.50X1.90cm/2.79X0.98X0.75in -Operating voltage: 3V -Standby current: <=10uA -Alarm current: <=20mA - method: compatible for ZigBee -Transmission distance: 10-30 meters (indoor without obstacles) -LED indicator: Yes -Installation method: tape or screw -Battery: 1.5V 2xAAA dry battery (not include) -Operating temperature: - centigrade ~ 50 degree centigrade -Working humidity: <=95% -Sensitive vibration : accurately senses and alerts any vibrations, ensuring thorough security coverage -Userfriendly design: simple installation and operation make it accessible for all users -Broad application: effective for use in homes, offices, and retail environments, safeguarding your property -Instant monitoring: provides alerts and historical data for continuous security management - : compatible with other smart devices for enhanced security functionality Package list: 2 x vibration sensor