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MQ-7 Semiconductor Carbon Monoxide CO Gas Sensor Module


 

  • Signal output instructions.
  • Dual signal output (analog output, and TTL level output)
  • The effective signal of TTL output is low level . (when Output lowlevel ,the
  • signal light on.can directly connected to the MCU)
  • Analog output 0 to 5V voltage, the higher the concentration ,the higher the
  • voltage.
  • Has a high sensitivity and good selectivity to carbon monoxide .
  • Long life and reliable stability

 

Specifications

Technical Specifications
The main chips LM393, the MQ-7 gas sensor
Working current 140mA
Size 35mm X22mm X18mm
Working voltage DC 5V
Sensitivity ≥3%
Concentration 10-1000ppm

Content

  • 1x MQ-7 Semiconductor Carbon Monoxide CO Gas Sensor Module
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