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Electrochemical O2 Oxygen Gas Sensor Module FS01501

  • O2 gas detection sensor module
  • Support UART and MODBUS-RS485
  • Three-electrode electro-chemical sensor
  • Outstanding anti-interference
  • Temperature compensation
  • Reliable service for sustainable cooperation

Electrochemical O2 Oxygen Gas Sensor Module FS01501 Introduction

FS01501 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 oxygen and follows Faraday’s law. By testing the magnitude of the current, the oxygen concentration can be determined. It uses a high-stability gas sensor and a high-performance microprocessor that supports UART output and Modbus-RS485 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.

Electrochemical O2 Oxygen Gas Sensor Module FS01501 Features

1.Detection range

Default: 0~25%Vol

Customizable: 30%-100%


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

Data detection accuracy MAX error: ≤0.5%Vol

Minimum solution: 0.1%Vol

Response time: T90 ≤10s


3.Data output methods

FS02001 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.Ventilators, medical and health equipment
3.Safety monitoring of industrial mines, tunnels, etc.
4.Farms, Smart Agriculture and Animal Husbandry


Parameter type Parameter index
Detection Type O2 Gas
Detection Principle Three-electrode electro-chemical
Detection Range Default: 0~25%Vol
Customizable: 30%-100%
Detection Accuracy Solution 0.1%Vol
Data Accuracy Max error:≤0.5%Vol
Operation Voltage DC 3.7V~5.5V
Operation Current <10mA (@5V power supply)
Response Time T90 ≤60s
Warm-up Time 3 min
Detection Frequency The data is updated once per second (Default)
Output Methods  Default: UART (3.3V_TTL Voltage level)
Reserve: MODBUS-RS485
Customizable: 4~20mA、0~5V、0~10V
Service Life 2 Years (in the air)
Reference Dimension 32.3×32.3×16.5 mm
Operation Temperature -10℃ ~ 50℃
Operation Humidity 0~95%RH (Non-Condensation)
Storage Temperature -20℃~60℃
Storage Humidity 0~99%RH (Non-Condensation)
Pressure Range 800~1200 mbar

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