Target: Alcohol
Model: ZM03
Detection range: 0-50ppm
Detection principle: Module,semiconductor, MEMS
Characteristics: High sensitivity and small size, and adopts I2C digital signal output mode
Size: 5×5×1.55
Working conditions: Working voltage :2.5±0.1V
Working current:≤25mA
Heating power:≤80mW
Notes: Output: I2C slave mode, speed 10-100kbps, default address: 0x55

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The digital alcohol module is a low-power, miniaturized module. The module uses a combination of a semiconductor gas sensor and a high-performance microprocessor to detect the gas concentration in the environment. The module has high sensitivity, small size and precision, and adopts I2C digital signal output mode, which is convenient for users to use and debug, and greatly shorten the user's design and development cycle. The module can be widely used in many fields such as environmental safety and portable instruments.


  • Portable instrument
  • Industrial and mining safety
  • medical hygiene
  • On-site control


  • MEMS technology
  • Ultra-low power consumption
  • Stable and reliable
  • High sensitivity
  • Anti - electromagnetic interference


Working Voltage 2.5±0.1V Working Current ≤25mA
Heater Current 80mW Detect Range 50ppm(alcohol )
Output Method I2C slave mode Default Address 0x55
I2C Rate 10-100kbps Pull-up Resistor Requires external pull-up resistor
Working Temperature ≤3min Response Time ≤60S

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.