// https://ajax.systems/products/doorprotect/ Installation method: Indoors Compatibility: Operates with all Ajax hubs, range extenders, ocBridge Plus, uartBridge Sensing element:Reed switch Alarm signal delivery time: 0.15 s Activation threshold: Small magnet — 1 cm; Big magnet — 2 cm Power supply: Battery: CR123A battery, 3 V Battery life: Up to 7 years Temperature sensor: Available Operating temperature range: From -10°С to +40°С Permissible humidity: Up to 75% Sensor resource: 2,000,000 openings