Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | 3144 |
| Sensor Type | Hall Effect Switch |
| Operating Voltage | 3.3V - 24V DC |
| Output Type | Digital Open Collector |
| Detection Range | 0-10mm (depends on magnet strength) |
| Response Frequency | Up to 50kHz |
| PCB Dimensions | 22mm x 16mm x 4mm |
| Mounting Hole Diameter | 3mm |
| LED Indicator | Yes (Power and Signal) |
| Application | Motor Speed, RPM Counting, Position Detection |
Anonymous
Mar 27, 2026
Rating: 5/5
Easy to wire up
As a beginner, I found this very easy to connect. Just VCC, GND, and Signal. The documentation online is plentiful. It made my final year project much easier to complete.
Anonymous
Mar 26, 2026
Rating: 4/5
Good value but sensitive to distance
Great sensor for the price. You do need to be careful with the gap between the magnet and the sensor; if it's too far, it won't trigger. Once calibrated, it works great for counting revolutions.
Anonymous
Mar 10, 2026
Rating: 4/5
Works well for tachometer
Using this to build a digital tachometer for my RC car. It handles high speeds well without missing pulses. Only wish the cable was a bit longer, but that's a minor issue.
Anonymous
Mar 10, 2026
Rating: 5/5
Solid build quality
The PCB looks clean and the soldering points are solid. The comparator chip included ensures a clean digital signal even in noisy environments. Very satisfied with this purchase.
Anonymous
Mar 08, 2026
Rating: 5/5
Reliable and Fast
I bought five of these for a conveyor belt counter project. They respond quickly and haven't failed yet after two weeks of continuous operation. Highly recommended for industrial prototyping.
Anonymous
Mar 02, 2026
Rating: 5/5
Perfect for Arduino Projects
This module works flawlessly with my Arduino Uno. I used it to measure the RPM of a small DC motor, and the readings were stable and accurate. The LED indicator is very helpful for debugging.
Q: What is the maximum speed it can measure?
A: The sensor has a response frequency of up to 50kHz. This allows it to accurately measure very high motor speeds, typically sufficient for most hobby and light industrial applications.
Q: Can I use this outdoors?
A: The module itself is not waterproof. If you plan to use it outdoors, please enclose it in a weatherproof housing to protect the electronics from moisture and dust.
Q: Is the output normally open or normally closed?
A: The 3144 Hall switch typically pulls the output low when a magnetic south pole is detected. It acts as an open-collector output, so you may need a pull-up resistor depending on your microcontroller setup.
Q: Can this work with a 5V Raspberry Pi GPIO?
A: Yes, the module operates between 3.3V and 24V. It is fully compatible with 5V Raspberry Pi GPIO pins. Just ensure you connect the grounds together.
Q: Does this module come with a magnet?
A: No, this package includes only the sensor module. You will need to provide your own magnet for detection.
Handmade Soap and Baking Cake Silicone Mold - Round 6-Cavity
$16.50
Meile Childhood Sponge Stamp Set - Kids' Paint Printing Tools with Sponge Brushes for Kindergarten Art
$14.30
2019 Jiangxi Isuzu Ruimai Lingtuo DMAX - Brand New Original Thickened Wear-Resistant Tires
$302.80
Pirelli P7 Run-Flat Tires 225 245 255 275 35 40 45 50 R17 18 19 20 21
$340.00
Lint-Free Industrial Wiping Cloth - Oil-Removing Absorbent Paper for Car Paint Wax and Grease Removal
$123.00
Henkel Loctite 495 Adhesive Genuine 401 406 416 460 496 Instant Glue Strong Industrial Adhesive for Metal and Plastic
$6.00
Industrial Ultrasonic Emulsification and Dispersion System - Anti-Foam Vibration for Pipeline Inner Wall Cleaning
$31,250.00
Commercial Small Electric Food Warmer Display Case for Fried Chicken, Burgers, Pies, Egg Tarts, and Youtiao - Constant Temperature Heating Cabinet for Breakfast
$623.00
Universal Triangular Stand for Mineral Water Bottles – Inverted Dispenser Rack for Water Coolers and Bottled Water Extraction
$5.10
Manufacturer Supply By-Product Cleaning Equipment, Fully Automatic Cylindrical Pig Tripe Degreaser and Cleaner for Cattle and Sheep Stomachs
$1,600.00
CANDLE.LAB | DIY Aromatherapy Candle Supplies, Natural Refined White Beeswax Pellets, Handmade Soap Materials #27
$9.00
![No-Shave Hair Transplant by Yongxiang Dean Team [Premium Customization], Unlimited Graft Count, Pain Management for Transplant Area](https://www.gosteppe.com/cache/small/product/269234/legacy-main-b28b879c33f1fe08b5eba226.webp)
No-Shave Hair Transplant by Yongxiang Dean Team [Premium Customization], Unlimited Graft Count, Pain Management for Transplant Area
$200,000.00
Kitchen Sink Drainage Mat - Sloped Countertop Drying Pad with Foldable Narrow Edges, Faucet Splash Guard, Storage Mat
$3.57
UE5 Unreal Engine 5.2-5.7 Physical Assembly System Physics Plugin
$0.50
![[Damai Holds Micro-Needle Hair Transplant Patent] Female Hairline | Non-Shaven Transplant 1000 Units | Forehead](https://www.gosteppe.com/cache/small/product/269231/legacy-main-b004541637d9aaa9d8c19288.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Female Hairline | Non-Shaven Transplant 1000 Units | Forehead
$17,000.00
Air Baffle for ABB ACS550-X2 R8 IP21 VFD
$3,450.00
Outdoor Waterproof Shockproof EDC Storage Box, Sealed Gear Case for Small Items
$5.10
Zhizhi Lin Zexu Small Regular Script Diamond Character Card Kaishu Copybook Porcelain Blue Gold Characters Brush Calligraphy Practice Folding Card
$68.00
Maotaizi Dual-Tip Dual-Color Glitter Markers for Kids - Non-Toxic Soft Tip Colored Pens for Elementary Art
$16.90
Tire Removal Socket Wrench and Spare Tire Tool Kit for Zhengzhou Nissan Paladin, Aoting, and Dongfeng Ruiqi Pickup Trucks
$16.90
Zhimo Ke Xingkai Technique Calligraphy Copybook - Upgraded Edition with Text, Images, and Video Tutorials for Beginners
$30.60
Small-Scale Yogurt Processing Production Line, Blended Yogurt Fermentation Equipment, Organic Milk Filling Machine
$115,920.00
Compact Manual Hot Stamping Machine for Logos, Business Cards, Leather Wallets, Plastic, and Wood - Heat Embossing and Branding Tool
$500.76
DIY Handmade Soap Mold – Single Square Silicone Mold for Homemade Soap
$1.96
Wall-Mounted Facial Towel Dispenser Transparent Upside-Down Design
$4.50
Colorful Ground Thread Inserts 16ER/IR1.0/2.0/3.0/3.5 ISO AG55/60 for High-Hardness Quenched Steel
$19.80
Jiuzheng Tongming Submerged Solenoid Pulse Valve TMF-Y-25/40/50/62/76S, Dust Removal Pulse Blowing Valve
$150.00
Large Water Bucket Stand – Storage Rack for Office Purified Water Dispensers and Mineral Water Containers
$282.56
Double Loop Chain Lifting Sling, Manganese Steel Double-End Ring Hoisting Chain, G80 Manganese Steel Lifting Rigging 1/2/3/5T
$98.00
Hesdige JG-376 Portable Stone Removal Hook - Multi-Function Tool for Cleaning Gravel from Car Tire Treads
$16.91
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
