- Temperature and smoke detector with replaceable batteries. - Smoke detection via an optical sensor. - HazeFlow algorithm to filter false alarms caused by smoke. - Thermocouple for temperature measurement. - Up to 4 years of battery life with replaceable batteries. - Integrated 85 dB siren. - Standalone or as part of the Ajax system operation. - Up to 1,300 m (4,265 ft) radio communication range with the hub. - Management and configuration via the Ajax apps. - Dimensions: 132 × 132 × 31 mm. - Weight: 220 g.