Wired Photoelectric Smoke & Heat Detector

SM-04

The Wired Smoke Detector is an INPUT DEVICE used for fire detection which is triggered by smoke and heat. The SM-04 is photoelectric type. It can use independently or as a front-end detector of an alarm system. Upon detection of smoke and heat, the SM-04 automatically generates an alarm signal to control panel and Led indication alarm. The unit is RF and EMI Immunity to interferences produced by radio device.


  • Newly-developed photoelectric Smoke & Heat sensor unit inside
  • Independently or as a front-end detector of an alarm system
  • Wired transmitting digital signal to control panel
  • Intelligent logic control, eliminate false alarm
  • Micro controller temperature analysis and Automatic temperature compensation for best summertime detection
  • Tightly-mated bug guard to protect the sensor optics from insects, spiders and dust, Worm, it is dustproof, mothproof and anti-white light
  • Strong adaptability to circumstance requirements;
  • SMT adopted, RF and EMI Immunity;
  • Thin structure design
  • Alarm output contacts of relay: N.C./ N.O. optional






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Technical Specification
Operating Voltage DC9V-35V
Standby Current NC≤12mA ; NO≤22mA
Alarm Current NC≤3mA ; NO≤15mA
RF Immunity > 20 V/m 10 – 1000 MHz
Sensitivity class I, 3%/m
White Light Immunity > 8000 lux
Noise(Vp-p) <200mV, (mVp-p)(25 C)
Alarm Temperature 57°C (135F)
Alarm Output NC or NO, Led indication
Alarm Volume 80 square meters (with the installation height of 6m-12m), and 60 square meters (installation height of less than 6m
Temperature Range -10°C to +50°C
Relative Humidity Less than 95% (25°C)
Installation Mode Ceiling Mounted
Housing High-impact ABS
Dimensions 100mm x 46mm (Dia.xH)
Applications For indoor use