MODEL : YD-818

The component of the electric circuit adopts CPU and SMT technology, small size, high precision and stability, also low power consumption.

Transmitter projects beam signal every 3 seconds to check any smoke caused by fire, when smoke density reaches the present standard, the receiver will confirm the signal for 16 consecutive times (once every 0.3 sec), control panel will then receive the fire signal after consumption is made.
Detector has a monitoring light operates every 16 seconds (flash) during standby status. When there is smoke (reaches operating standard), detector will issue fire signal after 16 consecutive times of confirmation on every 0.3 second, if any dust cause flashing or inconsecutive signal, it will go back to normal operation after the 32 times.
Insect guard is made of stainless steel that is 0.5mm aperture to prevent the invasion by insects and dust, and decrease the chance of false alarm.
This detector is operated by temperature differential sensing theory, with UL approved high reliability sensor to connect with metal, it is made by high quality material to enhance its ability to overcome the bad environment.
The water discharger is installed on the main body of the detector to eliminate the false alarm and breakdown caused by accumulated water.
This detector has passed strict quality control and repeated tests, which has stable quality and high reliability.
Type Smoke Detector Type A, B, C    Fixed Temperature 2 types
Operating Density 7.5%, 15%, 22.5% within 30 seconds
Voltage DC 9V~DC30V
Temperature Rating 55C
Operating Temperature Temperature rating x 125% within 300 seconds
Operating Current DC 24V 30mA
Monitoring Current Monitoring Status under 60µA
Polar Non-polar
Ambient Temperature -10C~+55C
Humidity 10~95%
Material Fire-proof plastic (V-0)
Size 110mm (diameter) x 52mm (height)
Weight Approximately 160g
Color Ivory