Features:
– Detects when a door or window is opened
– Tamper proof protection
– External NO/NC connection for wired sensors
– Low battery LED indicator
– Protocol: H-Net

Specifications:
– Function: Door/window contact detector
– Operating Frequency: 868 MHz
– H-Net wireless protocol
– RF Type: Transmitter
– Contact gap: min. 10mm (close)
– Battery: 1.5V AAA x 3
– Operation Range: 150 meters (open space)