Standex Detect - Continuous Liquid Level Sensors
Continuous level sensors provide real-time monitoring across the entire height of a fluid container. These sensors use magnetic reed switches mounted along a PCB, combined with resistors to generate discreet voltage outputs. As a magnetic float moves along the sensor stem, it activates multiple reed switches, enabling precise and uninterrupted tracking of fluid levels. Advanced models like the CLS and HLS series incorporate capacitive or Hall effect technologies for high-resolution, programmable outputs in harsh environments.
More Product Information
Reliable Switching in a Small Footprint
The miniature reed switch series features compact, power-efficient magnetic switches with glass body lengths ranging from 9 to 14 mm. Designed for precision and versatility, these switches operate with no power consumption in their normally open state, making them ideal for energy-sensitive applications.
Available in a wide range of switching characteristics, including close differential, high current, mercury wetted, high-performance, and SPDT (changeover) configurations, this series supports diverse design requirements across industries. Their small footprint makes them especially valuable in miniaturized systems such as semiconductor testing equipment and medical devices, while also serving critical roles in telecommunications, security, automotive, appliances, and industrial automation.
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.
Multipoint sensors are designed to detect fluid levels at specific, predefined points. Using multiple reed switches and floats on a single stem, these sensors can monitor up to 9 distinct levels. Ideal for applications requiring discrete level detection, such as tanks with layered liquids of varying densities, these sensors offer reliable switching, even under extreme temperatures and pressures. The LS04 and LS05 series exemplify this adaptability, supporting multiple floats and custom configurations for versatile fluid monitoring.
High density matrix reed relays are designed for ultra-compact, high-channel-count applications where space efficiency and performance are critical. With footprints as small as 4.35 × 4.35 mm, these relays enable dense relay arrays, up to 1000 relays on a 12” board, ideal for IC wafer testing, functional PCB test systems, and data acquisition platforms. Featuring low power consumption, fast switching speeds, and optional shielding configurations, they offer reliable performance in demanding environments. Their modular design supports vertical and horizontal stacking, making them a versatile solution for high-density signal routing and matrix switching.
The industrial manufacturing industry has been a sector of constant innovation for centuries, continuously leveraging the data from frequent iterations to achieve new solutions. This is no different today, driven by advancements in automation, the adoption of Industry 4.0 technologies, the integration of IoT, and the shift towards sustainable manufacturing practices. These trends require the development of new testing protocols, thorough safety standards, and sophisticated quality control measures to ensure the reliability and efficiency of increasingly complex systems. Manufacturers must also address interoperability and cybersecurity challenges posed by interconnected devices and digital supply chains. Add the push for eco-friendly, sustainable manufacturing practices in conjunction with rigorous testing for compliance with environmental regulations, and achieving balanced testing facility solutions is no easy task.
Reed Relay Modules integrate multiple high-performance reed relays into compact, ready-to-use packages for efficient signal switching in space-constrained designs. Available in 8-channel configurations, these modules simplify circuit design by combining switching functionality with integrated driver electronics and advanced packaging.
The RM05-8A-SP Series features an 8-pole relay configuration housed in a dual-in-line through-hole package, equipped with MAX4823 integrated drivers and kickback protection—eliminating the need for external activation circuitry and reducing PCB footprint.
- Up to 96 differential channels per full rack mainframe
- Constantly monitor input signals for fault conditions
- Flexible configurations for detecting edges, out-of-bounds conditions and measuring pulse widths
- Inputs can be masked, inverted, and combined to produce interrupts
- Can be used as a time stamp module and as a digital I/O
- Programmable debounce circuitry prevents erroneous readings
- 10 V and 100 V input ranges
- On-board memory stores events with IEEE 1588 timestamps
- Synchronize reading of input states with other scanned analog channels
High Power Magnetic Switching for Demanding Applications
The high-power reed switch series offers robust magnetic switching solutions capable of handling up to 120 W and voltages as high as 1,000 VDC. Designed for demanding applications, these reed switches are available in various sizes starting from 14 mm, including surface mount and through-hole options for flexible integration.
These switches are ideal for proximity, position, motion, and end-limit sensing, and can also be packaged into high power reed relays for enhanced durability and simplified PCB mounting. Relay packaging supports both pick-and-place automation and high insulation resistance, with some models exceeding 10¹³ Ohms.
Popular series such as KT, SHV, LI, and BE offer a range of contact configurations, including SPST, SPDT, and multi-switch designs. Whether used in automotive systems or test and measurement equipment, these high-power reed switches deliver reliable performance where high voltage and current demands are critical.
Custom solutions are also available to meet specific design requirements.
Discover reed relays engineered with specialized features to meet demanding application needs. These relays offer benefits such as ultra-low power consumption, latching functionality, high insulation resistance, and other advanced capabilities tailored for precision, reliability, and space-saving designs.
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.