Model No. SR-812PC-2 Operating voltage DC9~35V Alarm temperature N/A Static current 20uA Alarm current 35mA@DC12V;83m@DC24V Alarm output Remote LED indicator Installation Ceiling mounted Sensitivity 2.06%ft±1.3%ft Working environment -10~+50(â?¤95%RH No congelation) Dimension 100*46mm