Electrochemical Alcohol Sensor ZE29A

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The ZE29A-C2H5OH electrochemical alcohol sensor module is to detect exhaled alcohol gas. With electrochemical alcohol sensor as core part and built-in temperature compensation sensor, it has high accuracy, high sensitivity, and strong anti-interference ability. It’s integrated with pressure sensor, which can realize blowing action detection to further ensure the accuracy of measurement. This product is suitable for alcohol detection of drunk driving or before work.


* High-precision and high-sensitivity
* UART output
* Blow interruption alarm
* High stability and strong anti-interference ability

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Alcohol Detector

Strengthen the punishment of drinking and driving in all the country to reduce the vicious traffic accidents caused by drunk driving. This involves testing a person's alcohol level and using equipment to do the testing. An alcohol detector is an effective tool for measuring the alcohol content in the human body.


Vehicle Alcohol Test

The picture shows a common "ignition interlock system" with an alcohol detection function in the United States. This lock is connected to the ignition system of the car. Before ignition, the driver must blow air to ensure that the alcohol concentration in the body does not exceed the standard. and the car can start.


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Specification Product Size

Technical Data Sheet


Model No. ZE29A
Sensor Type Fuel cell alcohol sensor
Target Gas Alcohol (C2H5OH)
Output UART (3.3V TTL)
Working Voltage 5V±0.3V
Working Current <500mA
Preheating time ≤10s
Detection Range 0~1.0 mg/l
Display accuracy Gas concentration(mg/l) Accuracy
C<0.400 ±0.050mg/l
C≥0.400 ±10%
Blow continuity detection 4 second(can be customized, flow: ≥ 10L/min)
Working temperature 10℃~40℃
Storage temperature -10℃~70℃
Module size 85*33*18mm


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As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


As a pioneer in gas sensor based solutions with the advanced processes, technologies and products, Winsen offers a wide range of gas sensors:


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