EARVKONG 433MHz Wireless Door Open Closed Sensor 2-way Door Contact Sensor Megnetic Sensor For Home Burglar Alarm System

Description Function 1 Detect door window opening Function 2 Detect door window closing Function 3 Support alarm buttonFunction 4 Tamper alarm if some one remove this door megnetic Sensor it will send 433MHz alarm sign to your alarm host Parameter Power Supply DC 3V CR2032 Battery not included Standby Current 8uAAlarm Current 15mATransmitting Distance 80m Open Area No Interference Radio Frequency 433MhzPackage included 1 x Wireless Door Open Closed Sensor