HC-202A Ionization Smoke Detector

Description : Ionization smoke detector responds to smoke. It has an ionization chamber inside. The ionization chamber with ions in it will generate a constant, small electric current.When smoke enters this detector, the smoke particles attach to the ions inside the chamber and neutralize them. That will cause the current inside the chamber drop, therefore trigger the detector alarm. Features : 12VDC input power, can be combined with security/ burglar system N/ C ( normal/ close) ; N/ O ( normal/ open) selected relay output With a button on the surface, when the detector alarms, the LED signal will hold until press the button. Specification : Input Voltage : 12VDC Standby Current : 35¼ A Alarm Current : 60mA Suitable Temperature : -15~ 50° C Suitable Humidity : 0~ 95% RH Size : 103mm x 47mm Weigh t : 140g Material : Fire-resisting ABS material Joint Contact : Copper ( zinc-plated) Color : Ivory White Notes Prohibit from being installed at the places with large volume of smoke and steam lingering, and the inlet and outlet of cold and warm air. The red wires are power source ( 12VDC) The black wires are the signal source. N/ O type, point 3 and point 4 do not connect in peacetime, when alarm, point 3 and point 4 will be connected. N/ C type, point 3 and point 4 connected in peacetime, when alarm, point 3 and point 4 will be unconnected.