Photoelectric Smoke Detector Horing Lih AHS-871 fire alarm

Detector has a monitoring LED that operates about every 16 seconds ( flash ) during standby status. When there is smoke, the detector will issue fire signal after 16 consecutive confirmations. (every 0.3 second) If any dust causes flashing or an intermittent signal, it will return to normal status after 32 confirmations.
The coating of terminal contacts meets the Rohs and provides better results on corrosion and conductive.
Each detector has added specific components that will effectively isolate interference from electromagnetic fields and lightening strike.
All detectors use high-density steel for the contacting plate material.
Specifications

Model : AHS-871
Type : 2-wire
Alarm Contact: 0.8A @30V DC
0.4A @125V AC
Voltage Range :12 ~ 30V DC
Alarm Current : Max.30mA
Standby Current :20 ~ 30μA (Loop response under 75μA)
Sensitivity Setting : Comply to EN 54
Ambient Temperature : -10oC ~ +55oC
Material : Fire-proof plastic
Dimensions : 111mm(Dia.) x 50mm(H)
Weight : About 170g
Color: White