A
Anonymous
Apr 03, 2026
Rating: 3/5
Instructions could be better
Module works but had to look up pinout online. Would prefer included diagram.
Description
Sensor Module Hall Effect Sensor 3144 Speed Measurement Sensor
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Sensor Type | Hall Effect (A3144) |
| Operating Voltage | 3.3V to 5V DC |
| Output Signal | Digital Switching Output |
| Comparator IC | LM393 |
| Working Current | Approx 15mA |
| PCB Dimensions | 3cm x 1.5cm |
| Mounting Hole Size | 3mm Diameter |
| LED Indicator | Power and Output Status |
| Operating Temperature | -25°C to 85°C |
| Primary Application | Speed Measurement and Counting |
5 reviews
A
Anonymous
Apr 01, 2026
Rating: 4/5
Good sensitivity
Works well but needed to tweak the potentiometer for my specific magnet strength.
A
Anonymous
Mar 21, 2026
Rating: 5/5
Easy to interface
Connected directly to Arduino Uno. Library examples work fine with this hardware.
A
Anonymous
Feb 17, 2026
Rating: 5/5
Reliable counting
Been using it for a revolution counter for weeks. No missed counts so far.
A
Anonymous
Feb 14, 2026
Rating: 5/5
Perfect for RPM projects
Used this for a motor speed controller. Very responsive to magnets and stable output.
5 FAQ
Q: Can it detect iron without a magnet?
A: No, this is a Hall Effect sensor requiring a magnetic field.
Q: What is the pinout order?
A: Typically VCC, GND, OUT from left to right facing the components.
Q: Is this suitable for outdoor use?
A: It is not waterproof. Please enclose it for outdoor applications.
Q: Does this work with 3.3V logic?
A: Yes, it operates between 3.3V and 5V DC.
Q: What is the max switching frequency?
A: Suitable for typical motor speeds, up to several kHz depending on magnet proximity.
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