Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Brand	Youxin Electronics
Model Number	3144 Hall Sensor
Sensor Type	Hall Effect Switch
Operating Voltage	4.5V - 24V DC
Output Type	Digital Open Collector
Operating Temperature	-40°C to +85°C
Application	Motor Speed Detection, Smart Cars
Pin Configuration	3-Pin (VCC, GND, OUT)
Package Type	TO-92 / Module Board
Material	Semiconductor & PCB

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Great for learning projects

Used this for a university robotics assignment. It made measuring motor speed very simple. The only minor issue is that the included wires were a bit short for my setup.

Anonymous

Mar 28, 2026

Rating: 4/5

Good value, easy to integrate

Very straightforward to connect with an Arduino. The signal is clean, though I had to adjust the magnet distance slightly for optimal triggering. Great price for a genuine 3144 chip.

Anonymous

Mar 27, 2026

Rating: 5/5

Reliable speed sensing

I've tested several hall sensors, and this Youxin module is among the most reliable. It handles high RPMs without missing pulses. Highly recommended for motor control applications.

Anonymous

Mar 18, 2026

Rating: 5/5

Sturdy and responsive

We bought a batch of these for our workshop. They are robust and respond instantly to magnetic fields. No failures so far after weeks of continuous testing.

Anonymous

Mar 07, 2026

Rating: 5/5

Exactly as described

The product matches the description perfectly. It's a genuine sensor, not a cheap clone. Shipping was fast, and the packaging protected the delicate pins well.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for my RC car project

This sensor module worked flawlessly right out of the box. I used it to measure wheel rotation speed on my custom smart car build, and the readings are consistent and accurate.

5 FAQ

Q: Can this sensor work with a 3.3V microcontroller like ESP32?

A: Yes, the module operates within a wide voltage range (4.5V-24V), but since the output is open collector, you can easily interface it with 3.3V logic by using a pull-up resistor to 3.3V.

Q: What is the maximum switching frequency of this sensor?

A: The 3144 Hall switch typically supports switching frequencies up to 20kHz, which is sufficient for most motor speed measurement applications.

Q: Is the output active high or active low?

A: The output is active low. When a magnetic south pole is detected near the sensing face, the output transistor turns on, pulling the line to ground.

Q: Does this module come with a magnet included?

A: No, this package includes only the sensor module. You will need to provide your own magnet for operation.

Q: Can I use this outdoors in the rain?

A: The sensor chip itself is weather-resistant, but the bare PCB module is not waterproof. We recommend enclosing it in a protective case if used in wet environments.

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