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SHENZHEN CIAN ELECTRONICS CO.,LTD is a professional burglar alarm equipment R & D processing and sale of high-tech private enterprise mainly engaged in magnetic contacts, reed switches,wired/wireless GSM alarm systems,emergency button, infrared detectors, smoke detectors, gas detectors, siren, horn and other security products labeled with CE&ROHS certificates.

High Stability Automatic Alarm Infrared Photoelectric Smoke Sensor Detector
Model: HC-821
1.Dimension: Φ140X41mm
2.Warning Density: Carbon monoxide 30ppm,within 120 minute does not alarm; 50ppm,within 60-90 minutes alarm;100ppm,within 10-40 minutes alarm; 300ppm,within 3 minutes alarm;Smog: 1%~5%/FT OBS
3.Operating voltage: DC9V (6F22 battery)
4.Alarm Current: ≤45mA
5.Surveillance current: ≤25uA
6.Work temperature: -10°C~60°C
7.Work humidity: ≤95%RH
8.Buzzer level: ≥85dB(3m)
9.Time of pre-heating: 1-2 mins
10.Battery: 9V battery
11.Certification:CE, RoHS











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