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Cylindrical Reed Sensors
Reed Sensors & Magnets - Cylindrical Reed Sensors
MK03, MK14, MK18, MK20 and MK20/1 are cylindrically-shaped sensors with cable terminals. SPST Switch and SPDT switch options. [more]
Through-Hole Reed Sensors
Reed Sensors & Magnets - Through-Hole Reed Sensors
MK06 are plastic encapsulated reed sensors for through-hole mounting on a PCB (Printed Circuit Board). Sizes range from 4mm-10mm. [more]
Ex-approved Reed Sensors
Reed Sensors & Magnets - Ex-approved Reed Sensors
MK08 and MK25 have ATEX approval for use in an environment with an explosive atmosphere. [more]
Panel Mount Reed Sensors
Reed Sensors & Magnets - Panel Mount Reed Sensors
MK02, MK03, MK04, MK05, MK07, MK12, MK13, MK11, MK11/M8, MK14, MK18, MK20/1 and MK21 are for general use or installations with cable terminals. [more]
Magnets in Housings
Magnets in Casing
M02, M04, M05, M06, M11, M11/8, M12, M13 and M21 are AINiCo-Magnets mounted in plastic casings with mounting holes for screw fastening. [more]
Sensor/Magnet Design Evaluation Kits
Reed Sensors & Magnets - Reed Sensor / Magnet Design Evalution Kits
Streamline your Sensor Design with our new Evaluation Kits. [more]

New Catalog - 2014

Tutorials - Audio Version

3-D Magnetic Mapping
Magnet Interactions
Magnet Technology & Uses
Latching Sensors & Relays
Liquid Level Sensing
Reed, Hall & EM Overview
Reed Switch Technology
Reed Relay as RF Switch Part 1
Reed Relay as RF Switch Part 2


Form A = normally open contact (N. O.)
Form B = normally closed contact (N.C.)
Form C = change over contact (S.P.D.T.)
Form E = Bistable / Latching
AT = Ampere Turns; Parameter that describes magnetic sensitivity.

All New Applications!

How a Reed Switch Works

How a reed switch works

How a Reed Switch is Made

Reed Switch Production

Reed Sensor Resources

Activation Distances
A guideline for Reed Sensor magnetic activation distances.

Basic Reed Switch
General function and description of Reed Switches.

Electrical Parameters
Basis electrical characteristics of Reed Switches.

Handling Precautions
Proper handling techniques for Reed Sensors.

Life Test Data
View life test data for Reed Switches.

Magnetic Field Strength
Ampere Turns (AT) vs. milliTesla (mT).

Magnetic Operation
A Reed Switch used in conjuction with a permanent magnet is a Reed Sensor.

Reed Sensor Applications
View a small sample of the different Reed Switch applications.

Technology Comparison
The benefits of using a Reed Sensor vs a Hall Effect sensor.