2 or 4 wire ()135 degrees Fahrenheit switching temperature ()Voltage: 12 or 24 VDC; Standby current: 70 microA; Alarm current: 35 mA () () () () () ()

SD-169: 4-wire smoke & heat detector ()SD-269: 2-wire smoke & heat detector ()Smoke Sensitivity: 2.6 1.11%/FT OBS ()UL/CE approvel () () () () ()

9V Battery ()Relay output (some models) ()Interconnect function (some models) () () () () () ()

Natural gas, propane gas, carbon monoxide ()12 or 24 VDC Operating Voltage; Power consumption: 2W; Output voltage: 0, 6 or 12 VDC () () () () () () ()

2 wire ()Rate of Rise Switching Temperature ()18-30 VDC Operating Voltage; Standby current: 0 microA; Alarm current: 100mA () () () () () ()

2 or 4 wire ()135 degrees Fahrenheit switching temperature ()Voltage: 12 or 24 VDC; Standby current: 70 microA; Alarm current: 35 mA () () () () () ()

2 or 4 wire ()135 degrees Fahrenheit switching temperature ()Voltage: 12 or 24 VDC; Standby current: 70 microA; Alarm current: 35 mA () () () () () ()

2 or 4 wire ()135 degrees Fahrenheit switching temperature ()Voltage: 12 or 24 VDC; Standby current: 70 microA; Alarm current: 35 mA ()SmartHead option - monitors sensitivity of sensor head, can info

Power Sources: 9V Alkalines, AC Power or 12 VDC ()Backup battery options ()Interconnect options () () () () () ()