DoorProtect B, Magnetic door and window opening detector, AJAX

{__Magnetic door and window opening detector

With their compact size, high-end sensors and wireless communication, Ajax DoorProtect detectors can protect doors and windows across several floors of a house or office.__}
Detector type: Wireless
Mounting: Surface-mounted
Detecting elements: Reed switch, accelerometer
Distance to magnet: Up to 1 cm (0.4 in) (small magnet), up to 2 cm (0.8 in) (big magnet)
Use: Indoor
Compatibility: Works only with Ajax Hub
Additional input to plug in the wire detectors: Available
Tamper protection: Available
Radio signal power: 20 mW
Communication protocol: Jeweller (868.0?868.6 MHz)
Maximum distance between detector and central unit: Up to 1,000 m (6562 ft) (in open area)
Power supply: CR123A battery
Power supply voltage: 3 V
Battery life: Up to 5 years
Operating temperature range: From 0°? (+32°F) to +50°? (+122°F)
Operating humidity: Up to 80%
Dimensions: 20x90 mm (0.78x3.54 in)