MQ-4 Methane Natural Gas Sensor

  • Circuit Voltage (Vc): 5V±0.1
  • Heating Voltage (VH): 5V±0.1
  • Load Resistance (PL): 20KΩ
  • Heater Resistance (RH): 33Ω±5%
  • Heating Consumption (PH): Less than 750mW
  • Operating Temperature (Tao): -10°C to 50°C
  • Storage Temperature (Tas): -20°C to 70°C
  • Relative Humidity (RH): Less than 95% (standard condition)
  • Oxygen Concentration: Can affect sensitivity
  • Sensing Resistance (Rs): 10KΩ to 60KΩ (at 1000ppm CH4, 20°C±2°C, 65%±5% humidity)
  • Preheat Time: Over 24 hours
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