KERUI 433mhz Wireless Door Window Sensor Open Detector GSM PSTN Home Alarm System Home Security Voice Burglar Smart Alarm System

Note: if you don't buy the alarm device from our store,we can't give 100% guarantee that the sensor is compatible with your device.hope your understanding for this.

• 1, Transmission frequency: 433MHz

• 2, Operating Power: 1*23A 12V Battery(not including)

• 3, Built-in Antenna

• 4, It will send the alarm signal to control host once the door or window is opened 

Kit1 : 1*wireless door window sensor(battery not including)

Kit2 : 3*wireless door window sensor(battery not including)