Standex Detect - Magnet Detection Proximity Sensors
These sensors detect the presence or movement of a magnet, enabling precise position or proximity monitoring. Available in Reed or Hall effect versions, they are used in medical, industrial, and consumer devices.
- MK03 Series Reed Sensor
- MK04 Series Reed Sensor
- MK04R Series Reed Sensor
- MK05 Series Reed Sensor
- MK07 Series Reed Sensor
- MK08 Series Reed Sensor
- MK11 Brass Series Reed Sensor
- MK11 Plastic Series Reed Sensor
- MK11 Stainless Steel Series Reed Sensor
- MK13 Series Reed Sensor
- MK14 Series Reed Sensor
- MK18 Series Reed Sensor
- MK20/1 Series Reed Sensor
- MK20/2 Series Reed Sensor
- MK21 Series Reed Sensor
- MK21PR Series Reed Sensor
- MK26 Series Reed Sensor
- MK27 Series Reed Sensor
More Product Information
Reed liquid level sensors use magnetic floats and reed switch technology to detect fluid levels. As the float moves with the liquid, it activates reed switches housed within a stem, providing a reliable on/off signal or triggering multiple level points. These sensors are highly energy-efficient, drawing no power until activated, making them ideal for battery-powered or low-energy applications.
They are available in vertical or horizontal mount configurations and can be customized for various fluid types, temperatures, and pressures. With options for stainless steel or plastic housings, reed sensors offer a simple, cost-effective solution for fluid level monitoring in automotive, industrial, HVAC, and appliance systems.
Dual In-line Package (DIP) Photo-MOSFET relays offering easy through-hole mounting and robust performance. Commonly used in industrial control, security systems, and test equipment.
- Multi Tester with 16AMP CDN
- EFT/Burst 5kV IEC 61000-4-4
- Surge, Combination Wave 7kV IEC 61000-4-5
- Surge Magnetic field IEC 61000-4-9 (MSURGE-A loop antenna required)
- Ring Wave, 7kV IEC 61000-4-12 & ANSI
- Telicomm Wave, 7kV IEC 61000-4-5 & ITU
- AC Dips/Drops IEC 61000-4-11 (DIP 116 dips transformer required)
- DC Dips/Drops IEC 61000-4-29 (2x DC supplies required)
Our surface mount SMD reed switch products feature a bare, hermetically sealed glass envelope designed for reliability and precision. With five distinct surface mount lead designs, these switches offer enhanced flexibility for various PCB layouts and applications.
Magnetically actuated, these reed switches are ideal for both switching and sensing functions across a wide range of industries, from automotive and medical to industrial and consumer electronics.
We offer nine different switch models, with glass lengths starting as small as 7 mm, and a variety of switching configurations. Choose from power ratings up to 100 W and switching voltages reaching 1,000 VDC, tailored to meet your specific performance requirements.
For streamlined manufacturing, our SMD reed switches are typically supplied in tape and reel packaging per IEC 286/Part 3, making them compatible with automatic pick-and-place equipment.
Single point liquid level sensors are designed to detect fluid at a specific level, typically a critical high or low point. These sensors use a single magnetic float and reed switch to provide a simple, reliable signal when the fluid reaches the designated level.
Available in vertical or horizontal mounting styles, these sensors are ideal for compact installations and are commonly used in tanks, reservoirs, and molded containers. They operate with minimal power consumption and offer high durability, with options for high-temperature resistance, IP-rated sealing, and high-power switching.
Their customizable design, cost-effectiveness, and ease of integration make them a dependable solution for fluid level monitoring across a wide range of industries.
Engineered to complement our sensor series, these magnets ensure optimal alignment, activation, and performance. Available in various shapes and magnetic strengths, they simplify integration and enhance reliability across sensing applications in automotive, industrial, and medical environments.
Designed for applications requiring current handling above 1 amp, these relays offer low on-resistance and high thermal stability for power control and motor drive systems.
- Large switching capacity in a small footprint
- Switch up to 16 A current - highest in its class
- High breakdown voltage (1,000 V rms between open contacts)
- Ideal for applications such as high current/high power switching, AC line power switching, driving relays for industrial machinery, solenoid switching, and automotive engine control
- Fail-safe interrupt inputs that can detect a fault condition automatically open up relays to their default state
Intrinsically safe reed relays and optocouplers are engineered for use in hazardous environments where ignition prevention is critical. Certified to ATEX standards and tested to ensure they do not become ignition sources, even in the presence of short circuits or adjacent component failures—these components are ideal for applications in explosive atmospheres such as mining, chemical processing, refineries, and power stations.
Designed to meet EN50020 safety standards, these relays and optocouplers feature tightly controlled air and creepage paths, high dielectric strength, and low-voltage coil inputs. With a maximum peak voltage of 375 V across input and output, and isolation distances up to 10 mm, they ensure safe operation under overload conditions. The Comparative Tracking Index (CTI) of the plastics used exceeds 175, and internal potting compounds provide additional insulation for long-term reliability.
Standex Detect
Standex Detect delivers precision-engineered Reed switches, sensors, relays and emerging technologies that empower innovation across industries. With a legacy rooted in reliability, we help customers solve complex challenges in automation, transportation, energy, and test and measurement; enabling smarter, safer, and more connected systems worldwide.