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Catalytic Combustion Methane Sensor FS01200B

  • Catalytic combustion methane sensor module

  • Support UART and MODBUS-RS485

  • Catalytic combustion sensor

  • Outstanding anti-interference

  • Temperature compensation

  • Reliable service for sustainable cooperation

Catalytic Combustion Methane Sensor FS01200B Introduction

FS01200B is a catalytic combustion gas sensor that works based on the principle of catalytic combustion. When combustible gas comes into contact with the detection element, the resistance increases and the output voltage change is directly proportional to the gas concentration. The compensation element has a correction and compensation effect on changes in temperature and humidity. It uses a high-stability gas sensor and a high-performance microprocessor, and supports UART output and Modbus-RS485 output for convenience. The module adopts precise automated calibration and testing equipment, which reduces human interference and ensures accurate and consistent data in large-scale production.

Catalytic Combustion Methane Sensor FS01200B Features

1.Detection range

Default: 0~100%LEL


2.High accuracy, high consistency, high solution, rapid response

Data detection accuracy MAX error: ±≤5%FS

Minimum solution: 1%LEL

Response time: T90 ≤60s


3.Data output methods

FS01201 supports UART and MODBUS-RS485

Customizable: 4~20mA、0~5V、0~10V


4.Long service life

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


5.High detection frequency

The data updates once per second by default.


1.Gas detectors, instrumentation equipment
2.Gas Leakage Alarm
3.Fire Safety
4.Gas concentration detection


Parameter type

Parameter index

Detection Gas

Methane and other combustible gases

Detection Principle

Catalytic combustion

Detection Range




Detection Accuracy

MAX Error≤ ±5% Readings

Response Time

T90 ≤60s

Operation Voltage

DC 3.7V~5.5V

Operation Current

<10mA (@5V power supply)

Warm-up Time


Detection Frequency

The data is updated once per second (Default)

Output Methods


UART (3.3V_TTLVoltage level)






Service Life

2 Years (in the air)

Reference Dimension

32.3×32.3×12.7 mm

Operation Temperature


Operation Humidity

0~95%RH (Non-Condensation)

Storage Temperature


Storage Humidity

0~95%RH (Non-Condensation)

Pressure Range

800~1200 mbar

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