Quick overview from the supplier:
Ajax Wireless Security Opening Detector "DoorProtect Plus", Black, Accelerometer
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https://ajax.systems/ru/products/doorprotectplus/
Installation method: Indoors
Compatibility: Operates with all Ajax hubs and range extenders
Sensing element: Reed switch, accelerometer
Alarm signal delivery time: 0.15 s
Activation threshold: Small magnet — 1 cm; Big magnet — 2 cm; Tilt: more than 5°
Power supply: Battery: CR123A battery, 3 V
Battery life: Up to 5 years
Temperature sensor: Available
Operating temperature range: From -10°С to +40°С
Permissible humidity: Up to 75%
Sensor resource: 2,000,000 openings
