Methane Combustible Gas Sensor FS1200B


  • Product Code: FS1200B
  • Availability: In Stock
  • Ex Tax: $5.00
CH4 Sensor
FS01200B is a catalytic combustion gas sensor, which works according to the principle of catalytic combustion effect. When the detection element encounters flammable gas, the resistance increases, and the output voltage change increases in proportion to the gas concentration, and the compensation element plays a role in correcting and compensating for the change of temperature and humidity. It adopts high-stability gas sensor and high-performance microprocessor, which can support UART output and Modbus-RS485 output, which is convenient to use. The module adopts precise automatic calibration and testing equipment, which reduces the interference of human factors, and ensures the accuracy and consistency of data while mass producing.
Detected Gas
Detection Principle
catalytic combustion
Detection Range 
Detection Accuracy
Maximum error ≤ ±5% of reading
Response Time
T90 ≤60s
Operating Voltage
DC 3.7 ~ 5.5V
Operating Current
<10mA (@5V Power Supply)
Warm-up Time
3 mins
Detection Frequency
Default update rate is once per second
Output Mode
UART(3.3V_TTL Level)
Modbus-RS485 (Reserved)
4~20mA、0~5V、0~10V (customizable)
Service Life 
2 Years (in the air)
32.3x32.3x12.7 mm
Operation Temperature
Operation Humidity
0%~95%RH (No Condensation)
Storage Temperature
Storage Humidity
0~95%RH (No Condensation)
Pressure Range
800~1200 mbar
* Using high stability gas sensors and high-performance microprocessors.
* Supports UART output and Modbus-RS485 output, which is convenient to use.

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