Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Type | Digital (TTL) |
| Detection Distance | Approx. 15mm |
| Indicator LED | Yes (Power and Signal) |
| Mounting Hole Diameter | 3.0 mm |
| PCB Dimensions | 32mm x 14mm |
| Connector Type | 3-Pin PH2.0 Header |
| Switch Type | Normally Open (NO) |
| Compatible Platforms | Arduino, Raspberry Pi, ESP32 |
| Package Includes | 1x Module, 1x Magnet, 4x Standoff Screws |
Anonymous
Mar 29, 2026
Rating: 5/5
Exceeded expectations
Very sensitive and accurate. I used it in a model train setup to detect station arrival, and it hasn't missed a beat in weeks of operation.
Anonymous
Mar 27, 2026
Rating: 4/5
Easy to use
Plug and play with standard microcontrollers. The documentation online is helpful. Deducting one star because the solder pads are slightly small.
Anonymous
Mar 24, 2026
Rating: 4/5
Good value, works as expected
Solid build quality. The magnet included is strong enough to trigger the switch reliably from about 1cm away. Only wish the cable was a bit longer.
Anonymous
Mar 19, 2026
Rating: 5/5
Great for smart home sensors
Integrated this with an ESP8266 to monitor my mailbox. Low power consumption and instant response time. Very satisfied with the purchase.
Anonymous
Mar 08, 2026
Rating: 5/5
Reliable and compact
We bought ten of these for our robotics workshop. They integrate seamlessly with Arduino boards and have held up well under student use.
Anonymous
Mar 04, 2026
Rating: 5/5
Perfect for security projects
Used this for a DIY door alarm system. The detection range is consistent and the LED indicator makes debugging very easy. Highly recommended for beginners.
Q: Does this module work with 3.3V logic levels?
A: Yes, the module operates comfortably within the 3.3V to 5V DC range, making it compatible with both 3.3V and 5V microcontrollers.
Q: Does the package include connecting wires?
A: No, the package includes the module, the magnet, and mounting screws. You will need to solder your own wires or use a compatible jumper cable harness separately.
Q: What is the maximum current the output pin can handle?
A: The digital output pin is designed for signal logic and should not source more than 20mA. It is intended to connect directly to a microcontroller GPIO pin.
Q: Is the magnet polarity important for operation?
A: Yes, reed switches are polarity-sensitive. Typically, one side of the magnet will trigger the switch while the other will not. You may need to flip the magnet if it doesn't activate initially.
Q: Can I use this outdoors?
A: The PCB itself is not waterproof. For outdoor use, we recommend placing the module inside a weatherproof enclosure or applying a conformal coating.
Genuine Yokohama Tires 205/215/225/235/245 45/50/55/60/65 R16/17/18/19
$220.00
Marie's Paper Blending Pen Set for Soft Sketches and Pastels - Professional Art Student Tools Including Blending Knives, Balls, Sponges, and Egg-Shaped Blenders for Oil Pastels and Drawing on Newsprint or Xuan Paper
$3.80
Toilet Storage Rack, Bathroom Floor-Standing Shelf, No-Drill Organizer for Toilet and Washing Machine
$26.00
Xiaoyaoyou Calligraphy Tracing Scroll - Antique-Style Mechanized Copybook for Beginners, Universal Kai Script Practice
$9.90
Commercial Tunnel Dryer - Conveyor Line for Drying Vegetables, Fruits, Herbs, and Agricultural Products
$36,019.00
Stainless Steel Over-Toilet Storage Rack – Floor-Standing Bathroom Organizer for Narrow Spaces Near Toilet or Washing Machine
$8.42
240 Drum Kit Techniques
$15.00
ZITAY D-TAP to DC Male Connector Power Cable for V-Mount Battery, Atomos Monitor Power Supply
$59.00
2025 New Flexible Silicone Food Warmer Plate - Multi-Functional and Rollable
$185.00
Michelin Tires 225 235 245 255 275/45 50 55 60R17 18 19 20 21 Run-Flat
$400.00
Narrow Gap Storage Rack for Behind Toilet - Bathroom Organizer Cabinet, Plastic Floor-Standing Unit for Restroom or Balcony
$24.20
Authentic Kayou Ultraman Cards - Zero & Tiga Classic Edition Full Box Deluxe Set with Max Star Cards (10 Yuan Pack)
$8.50
![[800N] Electric Wrench Pure Copper Brushless Lithium Battery Electric Wrench for Scaffolders, Carpenters, and Auto Mechanics](https://www.gosteppe.com/cache/small/product/269958/legacy-main-ec3c299e01aeec8ca2d4d9fb.webp)
[800N] Electric Wrench Pure Copper Brushless Lithium Battery Electric Wrench for Scaffolders, Carpenters, and Auto Mechanics
$287.00
Aromatherapy Candle Essential Oil, Soluble Fragrance Oil, Lily and Mint Scent, High Concentration Diffuser Stone and Soap DIY Material
$3.90
Disiple Commercial Fried Chicken Warmer with Heat Lamp for Egg Tarts, Chestnuts, and Sweet Potatoes
$1,045.00
Baby Rattle with Chewable Goat Skin - Traditional Wooden Hand-Shaken Toy for Newborns
$8.42
Low-Temperature 3D Stereoscopic Drawing Pen for Kids, 3D Printing Pen Consumables PCL Filament Coil
$10.20
GHL Small Wet Mixing Granulator Chicken Essence Feed Pelletizer Lab High-Speed Wet Mixing Granulator
$36,000.00
![[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement 1000 Grafts](https://www.gosteppe.com/cache/small/product/269952/legacy-main-dcbe0d97f2626dd23efe098f.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Top Thinning Hair Transplant | Micro-Needle Density Enhancement 1000 Grafts
$14,000.00
![[Folded Book] Zhao Mengfu Running Script: Zhi Zhai Ji - Complete Original-Size Calligraphy Masterpiece in Accordion Binding](https://www.gosteppe.com/cache/small/product/269951/legacy-main-dcc7bccd2c0e53c519ed3ca3.webp)
[Folded Book] Zhao Mengfu Running Script: Zhi Zhai Ji - Complete Original-Size Calligraphy Masterpiece in Accordion Binding
$15.10
Aizaofang Four-Connected Flower Elf Oval Flower DIY Handmade Soap Silicone Mold New Bar Soap Silicone Mold
$16.10
Ruitai Dental Korean Implant System Package
$3,980.00
Dental Implant Package - Full Mouth Zirconia Crowns by Dilic for Missing Teeth Replacement
$10.00
Adjustable Over-Toilet Storage Rack for Bathroom Floor Standing Space Saving Organizer
$147.20
Flake Soy Wax & White Bees Wax Pellets – DIY Cup Candle Making Kit with Strawberry Scented Mold and Raw Materials
$5.34
Manufacturer Supply FF High-Speed Dispersing Kettle - Stainless Steel Reactor for Paint, Ink, and Chemical Mixing Equipment
$9,104.80
Mia Bouncy Sketch Blending Cotton Sponge Ball Paper Stump Water-Absorbent Sponge New Art Tool Washable Magic Cotton for Students
$4.80
Yucheng 1606 Fast-Drying Acrylic Adhesive - Odorless, Non-Whitening Glue for Acrylic Bonding
$21.20
Magnetic Storage Shelf Cute Building Block Magnetic Organizer Box Refrigerator Decorative Sticker Cling Film Holder Wall-Mounted Fridge Magnet
$3.80
Commercial Countertop Fried Chicken Warmer Cabinet Hamburger Egg Tart Heating Constant Temperature Box Multi-Function Insulated Display Case for Fried Foods
$620.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[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)
