MQ-8 module Hydrogen sensor alarm Gas sensor Module

MQ-8 Sensor Description:

MQ-8 gas sensor sensitive material used in clean air conductivity is lower tin dioxide 

(SnO2). When the sensor is present in the environment in which the combustible gas, 

the sensor's conductivity increases with the concentration of combustible gases in air 

increases. Using a simple circuit can be converted to the change in conductivity of the 

gas concentration with the corresponding output signal. MQ-8 hydrogen gas sensor of 

high sensitivity, the monitoring of the other hydrogen-containing gas is also very satisfactory. 

The sensor can detect a variety of hydrogen-containing gas, in particular, city gas, is a low-cost 

sensors for a variety of applications.

Module Applications:

Suitable for domestic or industrial hydrogen leak on a monitoring device. Are not subject to 

ethanol vapor, soot, carbon monoxide and other gases interference.

Module Features:

1, using high-quality dual-panel design, with power indicator and TTL signal output instructions;

2, with a DO switch signal (TTL) output and AO analog signal output;

3, TTL output valid signal is low. (When the output low signal light can be directly connected 

microcontroller or relay module)

4, the analog output voltage, the higher the concentration the higher the voltage.

5, the hydrogen gas detection with better sensitivity.

6, there are four screw holes for easy positioning;

7, Product Dimensions: 32 (L) * 20 (W) * 22 (H)

8, with a long service life and reliable stability

9, rapid response and recovery characteristics


Electrical properties:

Input voltage: DC5V power (current): 150mA

DO output: TTL digital 0 and 1 (0.1 and 5V)

AO output :0.1-0 .3 V (relatively clean), the highest concentration of voltage around 4V

Special note: The sensor is powered, needs to warm up around 20S, measured data becomes 

stable, the sensor fever is a normal phenomenon, because the internal heating wire, if hot is not normal.

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MQ-8 module Hydrogen sensor alarm Gas sensor Module

  • Product Code: 9653214
  • Availability: In Stock
  • Rs.330.00

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Tags: Gas Sensor