Skip to main content
Australia Same Day Shipping! | Order before 12pm and have your order shipped the same day!

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



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


  • 1x MQ-7 Semiconductor Carbon Monoxide CO Gas Sensor Module
No reviews

Your Cart

Your cart is currently empty.
Click here to continue shopping.
Thanks for contacting us! We'll get back to you shortly. Thanks for subscribing Thanks! We will notify you when it becomes available! The max number of items have already been added There is only one item left to add to the cart There are only [num_items] items left to add to the cart