The 2GIG-DW20R is the industry’s most flexible supervised recessed door/window contact, allowing a multitude of applications while hiding the transmitter within a door or window frame. The 2GIG-DW20R uses a replaceable lithium battery and should last 5 years under normal usage.
Features: - Compact size, only 2 ½ in. long
- Fully supervised
- Lithium battery with 5 years life
- Reed sensitivity: 0.625 in. (1.59 cm) minimum gap, 0.85 in. (2.16 cm) typical