SKU: SENS-0631
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Saier HW16WA Water Flow Sensor (0.5–20 L/min, 4.5–18V DC)

₹269.00 (Inclusive of all taxes)
Out of Stock

The Saier HW16WA is a turbine-based water flow sensor compatible with 4.5–18V DC systems, providing analog or digital output for flow rates from 0.5 to 20 L/min. It is suitable for integration with Arduino, Raspberry Pi, PLCs, and other industrial or IoT control systems for precise liquid and gas flow monitoring.

Features

  • Turbine-based sensing for accurate flow measurement from 0.5 to 20 L/min.
  • Wide operating voltage range of 4.5–18V DC with low current draw (≤15mA).
  • Selectable analog or digital output signals for flexible system integration.
  • Durable construction rated for working pressures up to 1.75 MPa.
  • Suitable for monitoring both liquids and compatible gases.

Out of stock

Description

The Saier HW16WA Water Flow Sensor employs a precision turbine mechanism to translate fluid velocity into a measurable electrical signal. As fluid passes through the sensor body, it spins an internal rotor, generating a pulse frequency or analog voltage proportional to the flow rate. This robust design ensures reliable performance across its specified range.

Engineered for system integration, the sensor features a wide 4.5–18V DC input range, making it compatible with 5V and 12V logic systems common in industrial PLCs, Arduino, and Raspberry Pi projects. Its output can be configured for either a direct analog voltage or a digital pulse signal, providing flexibility for various data acquisition and control applications. The sensor’s body is constructed from durable, water-resistant materials suitable for inline installation in plumbing, irrigation, or process control systems.

Key Features

  • Turbine-based flow sensing with an accuracy of 5–8% across the 0.5–20 L/min range.
  • Broad 4.5–18V DC operating voltage ensures compatibility with 5V microcontrollers and 12V/24V industrial systems.
  • Low power consumption with an input current of ≤15 mA for energy-efficient operation.
  • High insulation resistance (>100 MΩ) and dielectric strength (AC500V, 50Hz) for safe, reliable electrical isolation.
  • Robust construction rated for working pressures up to 1.75 MPa (approx. 254 psi).
  • Output flexibility with high-level logic output ≥4.5V and low-level output ≤0.5V for clean signal interfacing.
  • Compact form factor designed for easy inline installation in confined spaces.
  • Versatile application support for monitoring water, compatible liquids, and non-corrosive gases.

Applications

  • Inline water flow monitoring for residential and commercial plumbing systems.
  • Irrigation control and water usage tracking in agricultural automation.
  • Process flow measurement and control in industrial liquid handling equipment.
  • Coolant or lubricant flow monitoring in CNC machines and industrial machinery.
  • DIY projects and IoT systems for smart home water management and leak detection.

Technical Specifications

Model NumberHW16WA
Flow Rate Range0.5 to 20 L/min
Operating VoltageDC 4.5 to 18 V
Input Current≤ 15 mA
Working Water Pressure≤ 1.75 MPa
Accuracy5–8%
Insulation Resistance> 100 MΩ
Dielectric StrengthAC 500V, 50 Hz
High-Level Output Voltage≥ 4.5V (VDD)
Low-Level Output Voltage≤ 0.5V
Output SignalAnalog / Digital Pulse

Frequently Asked Questions

What is the operating voltage range for the Saier HW16WA sensor?

The Saier HW16WA Water Flow Sensor operates from 4.5 to 18 Volts DC. This wide range makes it directly compatible with common 5V microcontroller systems (like Arduino) and 12V industrial or automotive power supplies without requiring a separate voltage regulator.

How do I interface the sensor's output with an Arduino or Raspberry Pi?

The sensor provides both analog and digital output options. For digital pulse counting (frequency proportional to flow rate), connect the signal wire to a digital interrupt pin on your microcontroller. For analog voltage reading, connect it to an ADC input pin. Ensure your logic levels match, as the high-level digital output is ≥4.5V.

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

While primarily designed for water and compatible liquids, the turbine mechanism can also measure flow rates of compatible, non-corrosive, and clean gases. Ensure the gas is dry and free of particulates to prevent damage to the internal bearings and to maintain measurement accuracy.

What is the maximum system pressure the sensor can withstand?

The sensor is rated for a maximum working water pressure of 1.75 Megapascals (MPa), which is approximately 254 pounds per square inch (psi). Do not exceed this pressure rating to avoid mechanical failure or damage to the sensor housing and internal components.

How accurate is the flow measurement, and does it require calibration?

The sensor has a stated accuracy of 5–8% across its specified flow range. For highest precision, a one-time calibration against a known flow standard is recommended for your specific installation and fluid type. The relationship between output signal (pulse frequency or analog voltage) and flow rate is generally linear.

Package Includes

  • 1 x Saier HW16WA Water Flow Sensor

Additional Information

Weight 0.057 kg
Dimensions 12 × 10 × 5 cm