TX-E201 - Interlogix Wireless Door/Window Sensor

The TX-E Series Door/Window Sensor from Interlogix is a compact, low profile contact that provides intrusion detection for application in homes and small businesses. This sensor comes with both white and brown covers and can easily be installed on doors, windows, cabinets or other items that can be opened and closed. The TX-E Series Door/Window Sensor also contains a replaceable lithium battery that lasts up to five years under normal usage.

Frequency: 319MHz (Crystal based)
Battery: CR2032
Battery Life: 5 years, typical
Operating Temperature :32°F (0°C) to 120°F (49°C)
Operating Humidity : 5-95% non condensing

Sensor Dimensions : (WxHxD) :2.25 x 1.0 x 0.25 in. (5.715 x 2.54 x 0.635 cm)
Magnet Dimensions  :  (WxHxD) 1.37 x 0.5 x 0.25 in. (3.47 x 1.27 x 0.635 cm)
Magnet gap : 0.625 in. maximum