MQ-7 Carbon Monoxide Detection Sensor Module

KSh 400.00

KSh 400.00

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Suitable for home or factory to detect carbon monoxide gas.
High quality dual-panel design, with power indicator and TTL signal output instructions.
DO switching signal (TTL) output and AO analog signal output.
TTL output valid signal is low. (When the output low signal is on, it can be directly connected micro-controller or relay module.)
Analog output voltage: the higher concentration, the higher voltage.
Have better sensitivity to carbon monoxide.
Four screw holes, easy positioning.
Long life and stability, quick response and resume.

Input voltage: DC 5±0.2V
Power: 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output: 0.1-0.3V (relatively clean), the highest concentration voltage is about 4V.
Dimensions: 33(L) * 21(W) * 17(H) mm

Wire connecting method:
VCC – positive pole (5V)
GND – negative pole
DO – TTL switch signal output
AO – analog signal output

Package Include:
1X MQ-7 Sensor Module


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Shipping Details

  • Please pay more attention to your order address which MUST MATCH your shipping address. (If you’re from Russia, Please leave your full name. It is very important)
  • Items will be shipped within 3 business days after payment.
  • Please check items when delivered, if damaged, please kindly accept it and contact us immediately.  We will make a confirmation and resend you a new one.


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Packaging Details

  • Unit Type: piece
  • Package Size: 25cm x 32cm x 5cm (9.84in x 12.60in x 1.97in)
  • Package Weight: 0.56kg (1.23lb.)