The WST-220 from Ecolink is a Wireless Recessed Door/Widow Contact.
Features:
- Compatible with 433 MHz Wireless Protocol
- Recessed Mounting for Hidden Applications
- Best Choice for Discrete Detection
- 1.0" Magnet Gap, Strong Rare Earth Magnet
- 5-Year Batter Life, Replaceable CR2 Lithium
- Operating Temperature: 35°F (0°) to 120°F (49°C)
- Operating Humidity: 5-95% Noncondensing
- Sensor Dimensions (WxH) .75x2.5 in
- Magnet Dimensions (WxH) .75x0.5 in
- FCC and IC Approved
