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HC-202D Ionization Smoke Detector


1.Has monitoring function.  The LED flashes once 
4 ~ 6 seconds.

2.There are two LEDs which can turn 360o and watch the
    situation of the detector at any angle.

3.It provides the wiring (-R) function of entrance LED.

4.The use of common base is advantageous to the 
   exchange of detector.
Functioning way
As there is smoke getting in the detector, the ion current will be decreased, making the voltage increase and touching the detector to function and send out alarm.  Meanwhile, the LED will be turned on automatically.  Under normal situation, the LED has monitoring function.  And as it functions, the LED keeps turning on continuously.  It is suitable for installation at the places like the entrance of staircase, corridor, lift hall, indoor room, etc.


Model No

HC-202D Ionization Smoke Detector

Overall structure

Adopted voltage



Fire-resisting ABS resin material

Monitoring electric current


Joint terminal

Copper rod (zinc-plated)
Functioning electric current 60mA


Suitable temperature -15~50°C 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.
Suitable humidity 0~95% RH
Size 103mm x 47mm
Weight 140g
General wiring drawing

Wiring drawing of entrance LED


COMMON BASE | HC-202D | HC-206A | HC-207D | HC-306A | HC-307D | HC-406 | HC-407A | HC-407D | HC-601UV