FS02501 is a fuel cell type electrochemical sensor that works by an oxidation or reduction reaction occurring on its working electrode and counter electrode, releasing charged ions and creating a current. The magnitude of the current produced is proportional to the concentration of hydrogen and follows Faraday’s law. By measuring the size of the current, the concentration of hydrogen can be determined. The sensor uses high-stability gas sensors and high-performance microprocessors and supports UART output and Modbus-RS485 output. The module is calibrated and tested using precision automated calibration and detection equipment to reduce human interference, ensuring accurate and consistent data while also ensuring large-scale production efficiency.
1.Detection range
Default: 0～1000 PPM
2.High accuracy, high consistency, high solution, rapid response
Data detection accuracy MAX error: ±≤3% reading
Minimum solution: 1PPM
Response time: T90 ≤60s
3.Data output methods
FS02501 supports UART and MODBUS-RS485;
Customizable: 4~20mA、0~5V、0~10V
4.Long service life
The lifetime is up to 1 year (in the air)
5.High detection frequency
The data updates once per second by default.
1.Gas detectors, instrumentation equipment
2.Industrial Production Safety
3.New energy vehicles
4.New energy production and storage equipment
| Parameter type | Parameter index | |
| Detection Type | H2 Gas | |
| Detection Principle | Three-electrode electro-chemical | |
| Detection Range | 0～1000PPM | |
| Max Load | 2000PPM | |
| Detection Accuracy | Solution | 1ppm |
| Data Accuracy | Max error±≤3% Reading | |
| Operation Voltage | DC 3.7V～5.5V | |
| Operation Current | ≤0.3mA (@5V power supply) | |
| 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 | 1 Year (in the air) | |
| Reference Dimension | 32.3×32.3×16.5 mm | |
| Operation Temperature | -30℃ ～ 50℃ | |
| Operation Humidity | 0～95%RH (Non-Condensation) | |
| Storage Temperature | 0℃ ～ 20℃ | |
| Storage Humidity | 0～95%RH (Non-Condensation) | |
| Pressure Range | 800~1200 mbar | |
Malaysia
