Winsen ZE03-H2S Gas Sensor Module - 0 to 20 ppm, UART/Analog Output
The Winsen ZE03-H2S is a dedicated electrochemical gas sensor module for detecting hydrogen sulfide (H2S) concentrations from 0 to 20 ppm with 0.01 ppm resolution. It operates on a wide 3.7V to 9V DC supply and provides both UART (3V logic) and analog voltage outputs for easy integration with microcontrollers like Arduino, ESP32, Raspberry Pi, and industrial PLCs.
Features
- Electrochemical H2S sensor with 0-20 ppm range and 0.01 ppm resolution
- Dual output: UART (3V logic) and analog voltage for flexible interfacing
- Wide operating voltage range: 3.7V to 9V DC with low current draw (<5 mA)
- Compact form factor (ø23.5 x 24.5 mm) for space-constrained installations
- Stable performance across 0-50°C and 20-90% RH operating conditions
Out of stock
The ZE03-H2S module integrates a high-performance electrochemical sensing cell specifically tuned for hydrogen sulfide detection. This sensing principle provides high selectivity and sensitivity to H2S gas, minimizing cross-sensitivity to other common gases. The onboard signal conditioning circuitry ensures a stable, linear output proportional to gas concentration.
Designed for reliable long-term monitoring, the module is suitable for deployment in industrial safety, environmental air quality assessment, and laboratory analysis systems. Its robust construction and specified operating parameters ensure consistent readings within the defined temperature and humidity ranges, supporting critical safety and compliance applications.
Additional Information
| Weight | 0.012 kg |
|---|---|
| Dimensions | 2.35 × 2.35 × 2.45 cm |













