Standex Detect reed switches deliver billions of reliable operations with no wearing parts. Hermetically sealed and customizable, they perform in the harshest environments across industries from automotive to medical.

Reed switches are widely used across sensing and switching applications where reliability, electrical isolation, and long operational life are critical. Their sealed construction and fast response make them well suited for integration into sensors, relays, and proximity‑based solutions operating in challenging electrical and environmental conditions.
If there are particular areas you need help with, feel free to skip to any of the following sections:
- Unmatched Reliability of Standex Detect Reed Switches
- Key Benefits of Standex Detect Reed Switches
- Reed Switch Parameters to Consider in Your Design
- Common Applications for Reed Switches
- Conclusion
- Additional Resources
Unmatched Reliability of Standex Detect Reed Switches
It’s no secret: available in hundreds of sizes and shapes, crucial in dozens of industries, Standex Detect reed switches can outperform the competition. Moreover, they’re equipped to survive billions of operations in even the most extreme areas. It continues to grow in popularity as the basis in relays and sensors for switching, detecting, and counting applications across the globe. Why wouldn’t you want Standex’s advanced reed switches for your own products?
Reed switch technology is uniquely simple and robust.
At its core is a glass‑to‑metal hermetic seal that protects two ferromagnetic reeds from moisture, dust, and contaminants. This sealed design allows reed switches to operate reliably in harsh environments without direct physical contact when used in sensors.
Second, Standex Detect reed switches are rigorously tested to ensure the quality of our manufacturing processes and resulting products. Moreover, we can also customize any switch to your own design!
Custom designs include value-add services such as PCB assembly, epoxy sealing, conformal coating, and wire termination. Request a custom reed switch design today!

Key Benefits of Standex Detect Reed Switches
Check out the below list of unique reed switching features and you’ll see just how diverse their use can be. Need help discussing your switching requirements, talk to a reed switch engineer.
Reed Technology Features
- Simple design
- Billions of reliable operations
- Extensive parametric testing
- Optional latching feature
- Draws no power in the normally open state
Electrical Performance
- Switch up to 10,000 V
- Switching currents up to 5 A
- Isolation up to 1 × 10¹⁵ Ω
- Can operate within 100 µs
- Pull-in and drop-out offered in milliTesla
- Ability to switch or carry as low as 10 nano- Volts and 1 femto- Amp without signal loss
Mechanical and Environmental Durability
- No wearing parts
- Withstands shocks up to 200 G
- Operates in extreme temperatures
- Handle vibration of 50 Hz to 2000 Hz at up to 30 Gs
- Hermetically sealed to perform in extreme and harsh environments
Signal Integrity and Precision
- Low contact resistance (50–100 mΩ)
- Minimal signal loss up to 7 GHz
Reed Switch Parameters to Consider in Your Design
Selecting the right reed switch requires understanding key electrical and mechanical parameters. Below are the most important factors engineers consider when designing reliable switching systems. Check out our Reed Academy for clear definitions and key insights into each of these electrical parameters.
- Pull-in (the points where the contacts close)
- Drop-out (the points where the contacts open)
- Hysteresis
- Contact resistance
- Dynamic contact resistance
- Switching voltage
- Switching current
- Carry current
- Stray capacitance
- Common mode voltage
- Switching wattage
- Breakdown voltage
- Insulation resistance
- Dielectric absorption
Common Applications for Reed Switches
Reed switches are widely used across sensing and switching applications where reliability, electrical isolation, and long operational life are critical. Their sealed construction and fast response make them well suited for integration into sensors, relays, and proximity‑based solutions operating in challenging electrical and environmental conditions.
- Reed sensors
- Reed relays
- Proximity sensors
- Liquid Leve and Flow Sensors
Industry applications
Reed switch sensors and relays are fit in any device that needs to detect movement, rotation, and liquid level. Standex Detect reed switch products serve in Automotive, Renewable Energy, Industrial and Automation, Medical, and Test Equipment. More importantly today’s emerging markets are calling upon reed switches as a low power solution in Electric Vehicles, LED, Solar and Photovoltaics.
Conclusion
Compared to mechanical switches, reed switches offer clear advantages in reliability, longevity, and performance. With no wearing parts, hermetically sealed construction, and the ability to operate without power in the normally open state, Standex Detect reed switches are built to perform in demanding environments and high‑cycle applications.
In addition to long life measured in billions of operations, reed switches provide design flexibility through adjustable hysteresis, precise pull‑in and drop‑out characteristics, and dependable operation across extreme temperatures. These benefits make them an ideal solution for applications where durability, efficiency, and signal integrity are critical.
Whether you’re developing a new product or improving an existing design, Standex Detect reed switches deliver a reliable, low‑power switching solution you can trust.
Contact one of our reed switch engineers today to discuss your application and get a head start on your next design.
Additional Resources
Learn more about our no power switching solutions using reed switch technology.








