JM Logo

sensors

BM22S3021-1
Manufacturer's P/N: BM22S3021-1
Manufacturer: Producent niezdefiniowany

Gas Detector Digital Sensor
Sensor typeGazu
InterfacesUART
Standard packaging:
1 pcs.

Minimum order:
1 pcs.

Minimum batch:
1 pcs.

In stock:
Available

BM22S3021-1 – Digital Methane (CH₄) Gas Detector Sensor

The BM22S3021-1 is a semiconductor-type digital sensor designed for the detection of methane gas (CH₄). When the gas concentration exceeds the preset alarm threshold, the output on the alarm pin (pin 5) switches from low to high, making it easy to build a gas detection system by simply powering the sensor and monitoring the alarm pin.

Each unit is factory-calibrated to ensure consistent performance, with a default alarm threshold set at 9% LEL (Lower Explosion Limit), equivalent to approximately 4500 ppm of methane.

The sensor automatically transmits its internal status via the UART interface approximately once every second, allowing a host controller to monitor real-time data without issuing commands. It also supports up to 26 control commands, enabling alarm threshold adjustment, various test operations, and restoration of factory settings.

Key Features:

  • Sensor type: semiconductor

  • Operating voltage: 5 V

  • Operating current: < 250 mA

  • UART interface, 9600 baud

  • Detection range: 300 ppm – 10,000 ppm (CH₄)

  • Alarm threshold (default): 9% LEL (~4500 ppm), user-configurable

  • Automatic status transmission every 1 second

  • Default preheat time: 180 seconds

  • Sensor lifespan: 5 years

  • Factory calibration for consistent and reliable performance

 

The BM22S3021-1 is a compact and efficient solution for methane detection, ideal for both residential and industrial applications requiring stable and configurable gas sensing.

Datasheets

No similar products

No related products

Decorative footer graphics
System B2B by

We use information stored using cookies and similar technologies for statistical purposes and to adapt our store to the individual needs of customers. You can change the settings for cookies in the program used to operate the Internet. Using our online store without changing the settings for cookies means that they will be saved in the device's memory. More information can be found in our privacy policy