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Rs. SKU: 7311
Availability: In Stock
Product details of MQ-3 MQ3 Alcohol Sensor Module Breath Gas Detector Ethanol Detection
This module is made using Alcohol Gas Sensor MQ3. It is a low cost semiconductor sensor which can detect the presence of alcohol gases at concentrations from 0.05 mg/L to 10 mg/L. The sensitive material used for this sensor is SnO2, whose conductivity is lower in clean air. It’s conductivity increases as the concentration of alcohol gases increases. It has high sensitivity to alcohol and has a good resistance to disturbances due to smoke, vapor and gasoline. This module provides both digital and analog outputs. MQ3 alcohol sensor module can be easily interfaced with Microcontrollers, Arduino Boards, Raspberry Pi etc.
Specification of MQ-3 MQ3 Alcohol Sensor Module Breath Gas Detector Ethanol Detection
Input voltage: 5VDC
Power consumption (current) : 150mA
DO output: TTL digital 1 and 0 (0.1 and 5V)
AO output: 0.1-0.3V (pollution-free)
Highest concentration of voltage: Approx 4V
Detection range of alcohol: detection range of 10 ~ 1000 PPM
Connection mode:
1. VCC: Positive (5v)
2. GND: Connect power negative
3. DO: TTL switch signal output
4. AO: Analog signal output
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