Best Reed Switches of 2026
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Reed switches are highly versatile and reliable electronic components that are widely used in various applications, such as security systems, medical equipment, automotive, and industrial automation. They consist of two ferromagnetic reed contacts that are encapsulated in a glass tube filled with inert gas. When a magnetic field is applied, the contacts attract and complete an electrical circuit. Reed switches are known for their long lifespan, low power consumption, and high switching speed. They can be customized to meet specific needs and are available in various sizes and configurations, making them an essential component for many electronic devices.
At a Glance: Our Top Picks
Top 10 Reed Switches
Gebildet Plastic Reed Switch with Magnets
The Gebildet 10pcs Plastic Reed Switch comes with 20 small multi-use round magnets. The reed switch has a maximum switching voltage of 100VDC and a working temperature of -20 to 80 degrees Celsius. It has a maximum switch current of 0.5A, maximum charging current of 1.0A, maximum contact resistance of 100M, and minimum insulation resistance of 1010. The length of the glass is 14mm and the diameter of the plastic part is 2.5mm. This is a great package for DIY projects or for use in electronics.
Gebildet Reed Switch, Normally Open Magnetic Induction Switch
Gebildet Reed Switch is a package of 30 miniature reed switches that are normally open (N/O) magnetic induction switches. With a maximum switching voltage of 100VDC, these switches are designed to provide reliable performance. The maximum switch current of 0.5A and maximum charging current of 1.0A make them suitable for various applications. With a working temperature range of -20 degrees to 80 degrees, they can withstand different environmental conditions. The Gebildet Reed Switch has a length of 14mm and a diameter of 2mm. Its maximum contact resistance is 100M, ensuring efficient electrical conductivity. The minimum insulation resistance of 1010 guarantees reliable insulation. These features make the Gebildet Reed Switch a versatile choice for different electronic projects and applications.
Gebildet KOFU OKI Reed Switch 6pcs
The Gebildet Reed Switch Set offers six magnetic induction switches, each with a compact 14 mm glass length and 2 mm diameter, making them easy to integrate into your projects. With a high maximum contact resistance of 100M, these switches ensure reliable performance and durability. They also provide an impressive insulation resistance of 10^10, helping to protect your circuits from electrical leakage. Included in the package are six reed switches and six magnetic chips, giving you everything you need to control electromagnetic starters, relays, and other devices efficiently. This set is perfect for industrial control and various electronic applications.
Gebildet 20pcs Reed Switch Contact
The Gebildet 20pcs Reed Switch Contact comes in a package of 20, with a glass length of 14 mm and diameter of 2 mm. It has a maximum switching voltage of 100VDC, and can operate in temperatures ranging from -20 to 80 degrees Celsius. The maximum switch current is 0.5A, maximum charging current is 1.0A, maximum contact resistance is 100M, and minimum insulation resistance is 1010. This is a great product for anyone that needs a reliable and durable magnetic induction switch.
Gebildet 10pcs Plastic Reed Switch
The Gebildet Reed Switches come in a convenient pack of 10, making it easy for you to handle multiple projects at once. Each switch features a glass length of 14 mm and a plastic diameter of 3 mm, fitting well into compact spaces. With a maximum switching voltage of 100VDC, you can confidently use these switches in various applications. They operate efficiently within a temperature range from -20 to 80 degrees, ensuring reliable performance in different environments. This versatility and reliability make the Reed Switches a great choice for your electrical needs.
Gebildet Magnetic Door Sensor Set
The Gebildet Magnetic Switch Set includes three black magnetic door contact reed switches, along with stickers and screws for easy installation. Each switch is compact, measuring approximately 29 x 15 x 9 mm, and features a 30 cm cable for flexible placement. You can utilize this set with various DC voltages, from 3V to 48V, making it versatile for different applications. Additionally, the switches can be configured as normally open or normally closed, allowing you to customize their function to suit your needs. This makes them ideal for enhancing security in wooden doors or windows.
Gebildet Security Window Gate Sensor
Gebildet Window Sensor is a magnetic sensor switch designed for security purposes. With a sensing distance of 10mm-15mm, compact size of 2915.59mm, and a service life of 1000000 times, this sensor ensures reliable performance. The 33cm wire length provides flexibility in installation. Operating at 0.5A and 100V, with a maximum power of 10W, this sensor offers efficient security monitoring for your doors and windows, alerting you to any unauthorized access.
HiLetgo Glass Seal Reed Switch N/C 5pcs
The HiLetgo Reed Switch is designed with a compact dry reed tube, making it lightweight and easy to fit into very tight spaces, ideal for small or miniaturized devices. Its sealed design protects the internal components from outside elements, so you can trust it to last a long time without damage. Since it doesn’t have any sliding parts, you won’t have to worry about wear and tear from metal fatigue, giving you a nearly endless mechanical lifespan. This switch uses magnetic fields to control circuits, making it a reliable sensor for various projects or devices you might work on.
Gebildet 10pcs 4W 3 Pin Reed Switch
The Gebildet 3 Pin Reed Switch comes in a pack of 10, making it easy to have spares or use in multiple projects. Each switch features a compact glass casing measuring 14mm long and 2.5mm in diameter, which helps protect the internal components while fitting neatly into your device. It can handle up to 4 watts of power and switch voltages up to 60 volts, giving you flexibility for various electronic applications. Plus, it works reliably in temperatures from -20 to 80 degrees Celsius, so you can trust it to perform well in different environments.
bnafes Magnetic Reed Switch for Door and Window Security
bnafes 4Sets Magnetic Reed Switch is a reliable and easy-to-install device for door and window security. Made of durable ABS material, it has a maximum switch voltage of 100V and a contact capacity of 500mA. With a trigger range of 10-20mm and NC/NO/COM contact types, it is suitable for various low voltage devices such as alarms, LED lights, relays, and GPS. The package includes 4 sets of magnetic door switches and screws for easy installation.
Frequently Asked Questions (FAQs)
1. What are reed switches used for?
Reed switches are commonly used as proximity sensors in mechanical systems. They can be found in door and window sensors for burglar alarm systems, tamperproofing methods, and even in laptops to trigger sleep/hibernation mode when the lid is closed.
2. What is the difference between magnetic and reed switches?
Both magnetic and reed switches operate using an external magnetic field. However, the main difference is that magnetic switches require an electrical circuit to operate and produce an output signal, while reed switches consume no power and only function when a magnetic field is present.
3. What is the disadvantage of reed switch?
Reed switches have a few disadvantages. They cannot be miniaturized like surface mount chips, the glass envelope can easily be damaged, arcing may occur between contacts, and they can only sense ferrous objects between the switch and magnet.
4. Do reed switches wear out?
Yes, reed switches or relays can eventually fail in one of three ways: sticking (not opening when they should), missing (not closing when they should), or a gradual increase in static contact resistance. However, if used within their current carrying capacity, reed switches can last for many years, with an estimated lifespan of 2 million cycles under ideal conditions.
5. How long do reed switches last?
The lifespan of reed switches depends on various factors, but if used within their current carrying capacity, they can last for many years. Under ideal conditions, they are designed to last for approximately 2 million cycles.
6. Why do reed switches fail?
Reed switches can fail in three ways: sticking (not opening when they should), missing (not closing when they should), or a gradual increase in static contact resistance. These failures can occur over time due to various factors and usage conditions.
During our reed switch research, we found 24 reed switch products and shortlisted 10 quality products. We collected and analyzed 27,074 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 $8.90.
The reed switches are available for purchase. We have researched hundreds of brands and picked the top brands of reed switches, including Gebildet, HiLetgo, bnafes. The seller of top 1 product has received honest feedback from 567 consumers with an average rating of 4.9.
Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.