MQ-3 Alcohol Ethanol Sensor Module

Specifications:

1.Heater voltage : 5±0.2V (AC•DC)

2.Loop voltage : ≤24V (DC)

3.Load resistance : adjustable

4.Heating Resistance : 31Ω±3Ω (Room temperature)

5.Heating Power : ≤ 900mW

6. Surface thermal resistance : 2Kohm-20Kohm (0.4mg/L alcohol)

7.Sensitivity : Rs (in air)/Rs (0.4mg/L alcohol) ≥ 5

8.Working temperature : 20 degree ±2 degree

9 .Humidity : 65%±5%RH

Features:

1.Signal output light indicator.

2.Analog and level 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 carbon monoxide detection with better sensitivity.

5.Has a long service life and reliable stability.

6.Rapid response recovery features.

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MQ-3 Alcohol Ethanol Sensor Module

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