Supply Voltage: 12-24 VDC Sukunet Current: 80 ± 10 μA Alarm Current: 55 ± 5mA Class: A2 Alarm Level: 58 ͦC Alarm signal: 20mA (BATTERY) Start Time: 8 ± 1 Detection Period: 2 ± 01 sec Power Indicator: Green LED (Short Flasher) Alarm Indicator: Red Led (fixed) Working Temperature: (-10 ͦC) - (55 ͦC) Relative Humidity (Max.): 95% Weight: 100 gr Socket Weight: 40 gr Dimensions: Ø: 100 mm, h: 60 mm Standard: EN54-5, EN54-7