Ajax Wireless Security Alarm Button, Black//https://ajax.systems/products/button/Compatibility: Operates with all Ajax hubs, and range extendersFalse alarm prevention: Yes (in the Panic mode)Number of buttons: 1Alarm transmission: Not longer than 0,15 sec Active from the first click (no need to wake it up)Adjustable alarm types: Intrusion; Fire; Medical help; Panic button; Gas leakPower supply: Battery: CR2032 battery, 3 VBattery life: Up to 5 yearsOperating temperature range: From -10°C to +40°CPermissible humidity: Up to 75%Protection class: IP55