Best Reed Switches of 2025

Harvey Wall Avatar
Harvey Wall
Last Updated: 29 Jan 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Reed switches are highly reliable and cost-effective electronic components used in a wide range of applications. These switches are made up of two metal reeds that are hermetically sealed in a glass tube containing inert gas. When a magnetic field is applied, the reeds attract each other, completing an electrical circuit. Reed switches are commonly used in sensors, relays, and security systems, among other applications. They are known for their durability and long lifespan, making them an excellent choice for industrial and commercial applications.

At a Glance: Our Top Picks

Gebildet 20pcs Glass Reed Switch Kit Cover #TOP 1
Gebildet 20pcs Glass Reed Switch Kit
ftb score rating icon 9.9
Gebildet 10pcs Plastic Reed Switch Kit Cover #TOP 2
Gebildet 10pcs Plastic Reed Switch Kit
ftb score rating icon 9.8
Gebildet 10pcs Plastic Reed Switch Set Cover #TOP 3
Gebildet 10pcs Plastic Reed Switch Set
ftb score rating icon 9.6

Top 10 Reed Switches

#TOP 1

Gebildet 20pcs Glass Reed Switch Kit

Gebildet-142-2
Gebildet 20pcs Glass Reed Switch Kit Cover
Gebildet 20pcs Glass Reed Switch Reed Contact,Magnet Near - Connect Circuit, Magnet Away - Break Circuit,Magnetic Induction Switch (2mm×14mm) With 20pcs Multi-Use Magnetic Sheet

The Gebildet Reed Switches are designed with a compact structure, making them ideal for use in limited spaces. Their sealed inert gas environment ensures a long working life, free from external influences. You will appreciate that these switches do not use sliding components, eliminating the risk of metal fatigue and providing nearly unlimited mechanical life. Additionally, they operate using magnetic field signals, making them versatile for various applications in your electronic devices.

What We Like
Compact and lightweight design
Long-lasting and reliable
No metal fatigue issues
Versatile for many applications
#TOP 2

Gebildet 10pcs Plastic Reed Switch Kit

DE331
3mm×14mm
Gebildet 10pcs Plastic Reed Switch Kit Cover
Gebildet 10pcs Plastic Reed Switch Reed Contact,Magnet Near - Connect Circuit, Magnet Away - Break Circuit, Magnetic Induction Switch (3mm×14mm) With 10pcs Small Multi-Use Round Mapgnets

The Gebildet Reed Switch is a versatile solution for your circuit needs. It includes ten reed switches and ten small, multi-use round magnets, allowing you to easily connect and break circuits with the proximity of a magnet. With a maximum switching voltage of 100VDC and a switch current of 0.5A, this product is reliable for various applications. Its working temperature range of -20 to 80 degrees ensures that it performs well in different environments, giving you peace of mind in your projects.

What We Like
Includes 10 reed switches
High switching voltage capacity
Wide temperature range
Compact and easy to use
#TOP 3

Gebildet 10pcs Plastic Reed Switch Set

DE474
Black
Gebildet 10pcs Plastic Reed Switch Set Cover
Gebildet 10pcs Plastic Reed Switch Reed Contact,Magnet Near - Break Circuit, Magnet Away -Connect Circuit,Magnetic Induction Switch(3mm×14mm) With 10pcs Small Multi-Use Round Magnets

The Gebildet Reed Switch Set includes ten reed switches and ten small multi-use round magnets, providing you with everything needed for various applications. The switches feature a compact size of 14mm in length and 3mm in diameter, making them easy to fit into tight spaces. With a maximum current of 0.5A and a switching voltage of up to 100VDC, they are suitable for a range of electronic projects. Operating effectively between -20 to 80 degrees Celsius, this set ensures reliability in diverse conditions.

What We Like
Includes ten reed switches
Compact and space-saving design
Wide operating temperature range
High maximum switching voltage
Useful for various electronic projects
#TOP 4

Proops 10 x SPNO Magnetic Glass Switches

E3310
Proops 10 x SPNO Magnetic Glass Switches Cover
Proops 10 x Magnetic Glass Reed Switches, Model Railways, Control Circuits, SPNO (E3310). Free UK Postage

The Proops Magnetic Glass Switches come with ten glass encapsulated switches, each measuring 27mm in length and 3.5mm in diameter. With an overall length of 46mm, including the wires at both ends, these switches are perfect for various applications, such as model railways and control circuits. They are single pole normally open (SPNO) reed switches, which means they activate when a magnet is placed nearby. This feature makes them convenient for creating simple and effective control systems in your projects.

What We Like
Includes ten switches
Compact size for easy installation
Ideal for model railways
Simple operation with magnets
#TOP 5

Gebildet 10pcs 4W Reed Switch Set

Gebildet *
E305
Gebildet 10pcs 4W Reed Switch Set Cover
Gebildet 10pcs 4W 3 Pin Reed Switch Reed Contact Normally Open N/O N/C SPDT, Glass Reed Relay Magnetic Induction Switch (2.5mm x 14mm)

The Gebildet Reed Switches are a set of ten 3-pin switches designed for versatile applications. Each glass reed measures 14 mm in length and 2.5 mm in diameter, making them compact and easy to integrate into various projects. With a maximum contact rating of 4W and a switching voltage of up to 60V, these switches are reliable for controlling electrical circuits. Operating efficiently within a temperature range of -20 to 80 degrees, they are well-suited for different environments, providing flexibility and convenience for users.

What We Like
Compact size for easy integration
Reliable maximum contact rating
Wide operating temperature range
High switching voltage capacity
#TOP 6

Gebildet 10pcs Glass Reed Switch Set

E434
E434
Gebildet 10pcs Glass Reed Switch Set Cover
Gebildet 10pcs 3 Pin Glass Reed Switch Reed Contact Normally Open N/O N/C SPDT,Glass Reed Relay Magnetic Induction Switch(2.5mm×14mm)+10pcs Magnet Piece

The Gebildet Reed Switches come in a convenient pack of 10, allowing you to easily integrate them into your projects. Each glass reed switch measures 14 mm in length and has a maximum contact rating of 4W, making them suitable for various applications. With a maximum switching voltage of 60VDC/VAC, they provide reliable performance for your electrical needs. Additionally, these switches can operate within a wide temperature range of -20 to 80 degrees, ensuring versatility in different environments.

What We Like
Includes 10 switches and magnets
Wide operating temperature range
Reliable maximum voltage of 60V
Compact and easy to use
High contact resistance
#TOP 7

OTOTEC 20x Normally Open Reed Switch

855-BU
OTOTEC 20x Normally Open Reed Switch Cover
OTOTEC 20x Reed Switch Normally Open Magnetic Induction Switch Plastic Anti-Interference 100V for Treadmill and Breaker 2.5X14mm

The OTOTEC Reed Switch is a normally open magnetic induction switch that operates effectively when a magnet is nearby. This feature allows you to easily control devices like treadmills and wall breakers, providing convenience in your daily use. Additionally, the switch can function as a sensor or a limit switch, enhancing your security systems with magnetic door and window monitoring. With a maximum switching voltage of 100VDC, you can trust this product to perform reliably over a wide temperature range.

What We Like
Reliable magnetic induction
Versatile applications
Wide temperature range
Easy to install
#TOP 8

PATIKIL Magnetic Reed Switch for Security

pta230820tt000133eu
White
PATIKIL Magnetic Reed Switch for Security Cover
PATIKIL Magnetic Reed Switch, 3 Sets NC Surface-Mounted Magnetic Contact Switch for Door Window, White

The PATIKIL Reed Switch is designed for enhanced security in various settings, including homes and businesses. It features a Normally Closed (NC) contact type, ensuring that the circuit is completed until the door or window is opened, which helps prevent unauthorised entry. With an operating distance of 15mm-25mm, it allows for flexible installation options. The durable ABS material guarantees long-lasting performance, giving you peace of mind. Installation is straightforward; simply connect the wires to your alarm system and mount the switch in your desired location.

What We Like
Durable ABS material
Easy installation process
Enhances security
Flexible operating distance
#TOP 9

sourcing map 10 x Silver Round Leads Green Glass Tube NO Reed Switch

A14051900UX1198
sourcing map 10 x Silver Round Leads Green Glass Tube NO Reed Switch Cover
sourcing map 10 x Silver Tone Round Leads Green Glass Tube NO Reed Switch 28mm

The sourcing map Reed Switch is a reliable component for various electrical applications. It features a maximum switching voltage of DC 100V, ensuring it can handle a variety of circuits safely. With a maximum carry current of 0.5A, this switch can efficiently control devices without risk of overload. Its minimal initial contact resistance of 0.15 ohm means it operates with low energy loss, enhancing overall efficiency. The compact glass tube size of 28 x 3 mm makes it easy to integrate into your projects, saving space while maintaining functionality.

What We Like
High switching voltage capacity
Compact design for easy integration
Low energy loss operation
Reliable current handling
#TOP 10

Gebildet Magnetic Door Sensor Switch Set

E517
White No
Gebildet Magnetic Door Sensor Switch Set Cover
Gebildet 3 sets White Magnetic Switch Wiring NO/NC Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System

The Gebildet Door Sensor Switch is an efficient solution for enhancing security in your home. It can manage various DC voltages from 3V to 48V, making it versatile for different devices. You benefit from its combined Normally Open (NO) and Normally Closed (NC) options, allowing you to tailor its functionality to your needs. The colour-coded cables simplify installation, ensuring you can set it up with ease. This product is perfect for use with doors and windows, effectively deterring theft and providing peace of mind.

What We Like
Versatile voltage compatibility
Easy installation with colour-coded cables
Customisable NO/NC options
Ideal for doors and windows
Enhances security effectively
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is reed switch used for?

A reed switch is an electromagnetic switch used to control the flow of electricity in a circuit. They are made from two or more ferrous reeds encased within a small glass tube-like envelope, which become magnetised and move together or separate when a magnetic field is moved towards the switch.

2. What is an example of a reed switch?

Reed switches actuated by magnets are commonly used in mechanical systems as proximity sensors. Examples are door and window sensors in burglar alarm systems and tamperproofing methods. Reed switches have been used in laptops to put the laptop into sleep/hibernation mode when the lid is closed.

3. How reliable are reed switches?

Reed relays are considered to be the most reliable mechanical relay solution for low power switching. They have few moving parts and an inherently long mechanical life. However, not all reed relays are constructed to the same high standards.

4. Why do reed switches fail?

Reed switches or relays eventually fail in one of three ways . They do not open when they should (usually called “sticking”), they fail to close when they should (“missing”), or their static contact resistance gradually drifts up to an unacceptable level .

Editor's Notes

During our reed switch research, we found 56 reed switch products and shortlisted 10 quality products. We collected and analyzed 18,271 customer reviews through our big data system to write the reed switches list. We found that most customers choose reed switches with an average price of £6.66.

The reed switches are available for purchase. We have researched hundreds of brands and picked the top brands of reed switches, including Gebildet, Proops, OTOTEC, PATIKIL, sourcing map. The seller of top 1 product has received honest feedback from 750 consumers with an average rating of 4.9.

Written by
Harvey Wall Avatar

Harvey Wall was born and raised in Norwich. He mastered the art of tool production and finished at the prestigious Norwich University. His area of interest include cutting tools, abrasive finishing and power tools. Harvey is always looking for ways to improve the finesse of industrial tools via his myriads of researches. He also shares some of his experiences on many platforms while writing on tool products.