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Electrochemical C2H5OH Alcohol Sensor Module FS00702

  • Alcohol concentration sensor
  • Electro-chemical sensor
  • Pump Suction Alcohol Test Sensor
  • Outstanding anti-interference
  • Temperature compensation
  • Reliable service for sustainable cooperation

Electrochemical C2H5OH Alcohol Sensor Module FS00702 Introduction

FS00702 is a fuel cell type electrochemical sensor that works by the oxidation and reduction reactions on the working electrode and counter electrode, releasing charges to form a current. The magnitude of the current generated is proportional to the concentration of alcohol and follows Faraday’s law. By testing the magnitude of the current, the alcohol concentration can be determined. It uses a high-stability gas sensor and a high-performance microprocessor that supports UART or analog signal output for easy use. The module adopts precise automatic calibration and detection equipment, reducing human interference and ensuring the accuracy and consistency of data during large-scale production. This alcohol sensor is very suitable for portable product applications, with a small and convenient design for integration.

Electrochemical C2H5OH Alcohol Sensor Module FS00702 Features

1.Detection range

Default: 0~500mg/100ml (Blood alcohol concentration (BAC))

Optional: 0~500ppm (Gas alcohol concentration)


2.High accuracy, high consistency, high solution

Data detection accuracy: ≤10% reading

Minimum solution: 0.001 mg/m³

Batch consistency: ≥90%


3.Long service life:

The lifetime is up to 2 years (in the air)


4.High detection frequency

The data updates once per second by default.


1.Air Quality Monitoring Equipment
2.Alcohol tester, instrumentation
3.Vehicle equipment, drunk driving warning
4.Hospitals, schools and other public places
5.Pre-job inspection, security inspection and fire protection

Electrochemical C2H5OH Alcohol Sensor Module FS00702 Specifications

Parameter type

Parameter index

Detection Type

Alcohol Gas

Detection Range

Default:0~500mg/100ml (Blood alcohol concentration)

Optional:0~500ppm (Gas alcohol concentration)

Interference Gas


Detection Accuracy

Min Solution

0.01 mg/100ml or 0.01ppm

Data Accuracy

≤10% Reading

Operation Voltage

DC 3.7V~6.0V

Operation Current

≤10mA (@5V power supply)

Warm-up Time

2 min

Detection Frequency

The data is updated once per second (Default)

Output Methods

Default Output

UART (3.3V_TTL Voltage level)



Service Life

2 Years (in the air)

Reference Dimension

23.0×25.5×5.5 mm

Operation Temperature

-10℃~ 60℃

Operation Humidity

15%RH~99%RH (Non-Condensation)

Storage Temperature

-20℃~ 70℃

Storage Humidity

0~99%RH (Non-Condensation)

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