Saier HW21WB-C Water Flow Sensor (1–30 L/min, 4.5–18V)
The Saier HW21WB-C is a turbine-based water flow sensor designed for monitoring liquid flow rates from 1 to 30 L/min. Operating from a 4.5–18V DC supply, it provides both analog and digital output signals for easy integration with microcontrollers (Arduino, ESP32), PLCs, and IoT systems.
Features
- Turbine-based flow sensing with ±10% accuracy for reliable measurement.
- Wide operating voltage range (4.5–18V DC) compatible with 5V and 12V systems.
- Dual analog and digital output options for flexible system integration.
- Robust construction rated for working pressures up to 1.75 MPa.
- Compact form factor for installation in confined spaces and inline piping.
Out of stock
The Saier HW21WB-C employs a precision turbine rotor to measure fluid flow. As liquid passes through the sensor body, it spins the turbine, generating a Hall-effect pulse signal proportional to the flow rate. This digital signal can be directly counted by a microcontroller, while an internal conditioning circuit also provides a corresponding analog voltage output.
Built for durability in aqueous environments, the sensor features brass fittings and a sealed housing capable of withstanding pressures up to 1.75 MPa. Its electrical isolation exceeds 100 MΩ, with a dielectric strength of 500V AC, ensuring safe operation in various industrial and commercial fluid handling systems.
Additional Information
| Weight | 0.062 kg |
|---|---|
| Dimensions | 12 × 10 × 5 cm |











