Supply Voltage: 12-24 VDC Sukunet Current: 45 ± 5 μA Alarm Current: 45 ± 5 mA Alarm Level: 10 ͦC / min Alarm signal: 20mA (BATTERY) Start Time: 6 ± 1 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