High Accuracy Hall Flow Meter

1) Maximum flow per minute <1000ml.
2) High reliability.
3) Small in size and low in cost.
4) High precision, long lifetime.
5) With compact size and light weight.
6) Self-assembly from four directions and easy to install.
7) Meet Food grade requirement.
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Product Details


This high accuracy hall flow meter sits in line with your water line and contains a pinwheel sensor to measure how much liquid has moved through it. There's an integrated magnetic hall effect sensor that outputs an electrical pulse with every revolution. The hall effect sensor is sealed from the water pipe and allows the sensor to stay safe and dry.

By counting the pulses from the output of the sensor, you can easily calculate water flow. Each 400 pulses is approximately 500 ml/min. Note this isn't a precision sensor, and the pulse rate does vary a bit depending on the flow rate, fluid pressure and sensor orientation. It will need careful calibration if better than 2% precision is required. However, its great for basic measurement tasks!



Maximum flow per minute <1000 ml.

High reliability.

Small in size and low in cost.

High precision, long life time.

With compact size and light weight.

Self-assembly from four directions and easy to install.

Meet Food grade requirement.


Widely used in all kinds of high-grade water dispensers, RO drinking machines, water cooler, water purifiers, coffee machines and other water appliances.


Model: FM-HL3012

Sensor Type: Hall effect

Working Voltage: 5 to 18 VDC (min tested working voltage 4.5 V)

Working Flow Rate: 0.1 to 1 Liters/Minute

Working Temperature range: -25 to +60℃

Accuracy: ±2% ±3% ±5%

Φ6.5 size pipe connections


Ensure that the fluid does not have fast pulse fluctuations

Ensure no reverse surge pressure.

Ensure no air in the whole flow circulation system.

Pay attention to the mounting position of flow meter

The Min/max flow should be within the linear range of the flow meter.

Avoid current impact.

Mis-connection to the joint terminal will damage the flow meter.

No mechanical stress applies on the joint terminal.

No fog accumulates on joint terminals.

Product images






1. Can I get some Sample?

A: YES. 3PCS free samples for testing.

2. What's the delivery time?

A: 7 days for samples.

15-30 days for mass productions.

3. Do you accept ODM?

A: YES, we do. And we will signed the confidentiality agreement with clients to keep their design.

4. Do you have a quality guarantee or warranty?

A: Yes, all our products are covered by a 12-month warranty.

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