ACEIRMC 5pcs MQ-3 MQ3 Alcohol Sensor Module Breath Gas Detector Ethanol Detection Module for Arduino Raspberry Pi ESP8266 MQ3 5V DC (MQ-3)

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ACEIRMC 5pcs MQ-3 MQ3 Alcohol Sensor Module Breath Gas Detector Ethanol Detection Module for Arduino Raspberry Pi ESP8266 MQ3 5V DC (MQ-3)

Regular Price: US$29.99

Special Price US$24.99

Availability: In stock

Supplier: ACEIRMC

Category: Business & Industry & Science Test & Measure & Inspect Temperature & Humidity Temperature Probes & Sensors

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Features: 1. High quality double panel design, with power indicator and TTL output signal. 2. Have DO switch signal(TTL) output and AO analog signal output. 3. TTL output signal for low level effectively. (when the low output electric signal lights at ordinary times, can be directly connect single chip microcomputer or relay module) 4. Analog output voltage with concentration, the higher concentration, the higher voltage. 5. Has long service life and reliable stability 6. Rapid response recovery features Wiring: VCC: positive power supply (5V) GND: power supply is negative DO: TTL switching signal output AO: analog signal output Application: For on-site detection of motor vehicle drivers and other non-drinking workers, but also for detecting other places of ethanol vapor, alcohol detection range: detection range 10 ~ 1000ppm. Package Includes: 5 x MQ-3 Special Alcohol Ethanol Gas Sensor Module

The MQ-3 sensor can detect a variety of alcohol concentration in the atmosphere, is a low-cost sensor suitable for a variety of applications. High MQ-3 gas sensor sensitivity to alcohol, can resist the interference of gasoline, smoke, water vapor. Use simple circuit can convert the change in conductivity of the gas concentration corresponding to the output signal. When there is alcohol vapor in the environment sensor, conductivity sensor with increg gas concentration of alcohol in the air increases. Sensitive material MQ-3 gas sensor is used in clean air low conductivity oxide.