Magnetic reed switch sensor
The Magnetic switch utilizing a reed switch sensor, operating on a precision structure: two ferromagnetic contacts are hermetically sealed inside a glass tube (to resist dust/oil), and the tube is enclosed in a non-conductive, non-magnetic housing (aluminum or plastic). When a magnetic field approaches (within 300mm, our sensor’s rated range), the ferromagnetic contacts attract and close, activating the connected device; when the magnetic field fades, the contacts separate, deactivating the device. This mechanical-electromagnetic design ensures fast response (≤10ms) and stable performance—critical for scenarios like washing machine door detection (to prevent operation when the door is open) or humidifier water tank positioning.
Features
- The internal structure is better than usual and more resistant to vibration.
- Fast response speed and strong sensitivity.
- Especially suitable for use in narrow spaces or for detecting small objects.
- Reliable and stable magnetic sensor in oily environments.
- High repeatability and precise positioning, suitable for precise detection of small objects.
Application
Home Appliances:
- Washing Machines: Detects whether the door is fully closed—prevents water leakage and ensures safe operation (avoids motor damage from “dry running”).
- Humidifiers: Monitors the water tank’s position—automatically shuts off the device when the tank is removed, preventing burnout of the internal fan.
- Coffee Machines: Triggers the “brew start” signal when the water reservoir is installed correctly, reducing malfunction risks.
Automotive & Tech Products. Focus on safety, efficiency, and user experience:
- Car Counters: Installed near commercial vehicle door latches; triggers a count each time the door opens (for passenger/cargo movement).–Value: Accurate real-time counting (avoids manual errors) and data for fleet operation adjustments.
- Laptops/Mobile Phones: Embedded in laptop hinges or phone magnetic cases; activates when screens/cases close.
- Scanners: Inside paper feed slots; detects paper presence via magnets.Value: Stops “empty scanning” (reduces motor wear) and avoids incomplete scans.
- Electric Irons: At water tank slots; triggers if the tank is missing/uninstalled.Value: Prevents dry-burning (avoids fire risks) and user misoperations.
- Smart Windows: At frame-glass junctions; links to home systems.Value: Shuts off AC to save energy and sends alerts if windows open unexpectedly.
Fitness Equipment
- Treadmills: Running Belt Detection: Near rollers; senses belt misalignment/looseness. –Value: Auto-slows to prevent falls and reduces roller wear.
- Folding Lock: At bracket joints; locks when folded.–Value: Prevents accidental unfolding (avoids damage/injury).
- Exercise Bikes: Resistance Adjustment: Inside resistance knobs; identifies gear via magnets.–Value: Ensures accurate resistance levels (fits HIIT needs).
- Pedal Speed Tracking: On cranks; counts rotations.–Value: Real-time RPM/distance data (avoids training miscalculations).
Specifications
| Product name | 12V Magnetic reed switch |
| Model | SensorMass20250603S5 |
| Sensing range | 300mm |
| Induction frequency | 50Hz |
| Rated voltage | 12V |
What is magnetic proximity switch?
Magnetic proximity switches work according to a simple but ingenious principle. A reed contact is within a case that is not conductive and not magnetic (aluminium or plastic are suitable as a material). This has two switches made of a ferromagnetic material, which are hermetically disconnected in a glass tube.
Do magnetic reed switches go bad?
In general, reed switches are robust and can last for millions of cycles under optimal conditions, but they are not immune to failure, especially if subjected to harsh operating conditions. Regular testing and monitoring can help ensure reliability in applications where they are used.
What is the purpose of a magnetic switch?
Magnetic switches are suitable for applications requiring a switched output for proximity, linear limit detection, logging or counting, or actuation purposes.
What are Hall effect magnetic switches?
Hall Effect switches are electronic devices that use magnetic fields to detect keypresses. Unlike mechanical switches, they rely on magnetic fields rather than physical contact. This results in fewer moving parts, often leading to increased durability and reliability.
What’s the difference between this reed switch and a Hall effect switch?
Reed switches rely on mechanical contacts (cost-effective for basic proximity detection), while Hall effect switches are electronic (no moving parts, better for high-vibration scenarios like car scanners). Our reed switch is more suitable for home appliances/ fitness gear (lower cost, easy installation).
