SKU: SENS-0624
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Saier HZ21WD-D Water Flow Sensor (1–30 L/min, 4.5–18V)

₹299.00 (Inclusive of all taxes)
Out of Stock

The Saier HZ21WD-D is a turbine-based water flow sensor designed for precise flow rate monitoring from 1 to 30 L/min. Compatible with 4.5–18V DC systems, it provides both analog and digital output signals for easy integration into industrial PLCs, home automation systems, and IoT projects.

Features

  • Turbine-based sensing for accurate liquid and gas flow measurement from 1 to 30 L/min.
  • Wide operating voltage range of 4.5–18V DC with low current consumption (≤15mA).
  • Provides flexible analog or digital output signals for versatile system integration.
  • Durable construction rated for working pressures up to 1.75 MPa.
  • Compact design facilitates installation in confined spaces and tight plumbing setups.

Out of stock

Description

The Saier HZ21WD-D Water Flow Sensor employs a precision turbine mechanism to measure flow rates. As fluid passes through the sensor body, it spins an internal rotor; the rotational speed is converted into a proportional electrical signal, providing real-time flow data. This robust design ensures reliable performance across a wide range of applications.

Engineered for durability, the sensor features a sealed construction capable of withstanding pressures up to 1.75 MPa. Its electrical insulation exceeds 100 MΩ, with a dielectric strength of 500V AC, making it suitable for use in various commercial and light industrial environments. The sensor outputs a clean digital signal (high level ≥4.5V, low level ≤0.5V) or an analog voltage, compatible with microcontrollers like Arduino, Raspberry Pi, and industrial data acquisition systems.

Key Features

  • High-accuracy turbine sensor with a typical measurement accuracy of ±10%.
  • Broad compatibility with both liquid and gaseous media for versatile application use.
  • Low-power operation with an input current draw of ≤15mA, suitable for battery-powered monitoring.
  • Robust housing designed for long-term reliability in demanding flow monitoring tasks.
  • Simple three-wire interface (VCC, GND, Signal) for straightforward connection and installation.
  • Certified insulation and dielectric strength for enhanced operational safety in electrical systems.

Applications

  • Flow rate monitoring in commercial water dispensers, water heaters, and coffee machines.
  • Liquid consumption measurement for vending machines and medical diagnostic equipment.
  • Process control and leak detection in light industrial fluid handling systems.
  • Residential water usage tracking and smart home automation projects.
  • Irrigation system flow monitoring and control in agricultural setups.

Technical Specifications

Model NumberHZ21WD-D
Flow Rate Range1 to 30 L/min
Working Pressure≤1.75 MPa
Operating VoltageDC 4.5 to 18V
Input Current≤15 mA
Output SignalAnalog / Digital (High: ≥4.5V, Low: ≤0.5V)
Accuracy±10%
Insulation Resistance>100 MΩ
Dielectric StrengthAC 500V, 50 Hz

Frequently Asked Questions

What is the output signal type of the HZ21WD-D sensor?

The HZ21WD-D provides flexible output options. It can deliver a digital pulse signal where the frequency corresponds to the flow rate, or an analog voltage output. The digital signal has a high-level voltage ≥4.5V and a low-level voltage ≤0.5V, making it directly compatible with 5V microcontroller logic.

Can this sensor be used with gases, or is it only for liquids?

Yes, the sensor is suitable for measuring the flow of both liquids and compatible gases. Its turbine mechanism responds to fluid movement regardless of medium type, provided the gas is clean and non-corrosive. Always verify the gas compatibility and pressure ratings for your specific application.

What is the required wiring and power supply for this flow sensor?

The sensor operates on a DC voltage between 4.5V and 18V, with a typical current draw of ≤15mA. It uses a standard three-wire connection: Red for VCC (positive supply), Black for GND (ground), and Yellow (or another color) for the Signal output. Ensure your power source is stable within the specified range.

Package Includes

  • 1 x Saier HZ21WD-D Water Flow Sensor

Additional Information

Weight 0.065 kg
Dimensions 12 × 10 × 5 cm