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Reed Sensors

A Reed Sensor contains a Reed Switch within an enclosed housing.  This ensures better mechanical protection and easier assembly.

The advantages of reed sensors include:

• Flat pack versions offer simple screw mounting
• Adjustable switching points
• Available with Normally Open (Form A), Normally Closed (Form B) or Changeover (From C) contacts
• Various magnetic sensitivity ranges
• Tubular Reed Sensors available in ultra-miniature sizes
• Tubular Threaded Reed Sensors offered in PA and Nickel Plated Brass material.
• Snap-Fit and Press-Fit options offer simple and easy assembly without the need for tools or screws.

Listed on our website is a selection of the most popular reed sensor products manufactured by our supplier PIC GmbH.  Suitable magnets for the reed sensors are also available.

PIC produce an extensive range of reed sensors and reed switches with various forms and housing materials.  Naked reed switches are available for large volume applications.  Below is an overview of the PIC range which can be found on their website –

• Reed Switches
• SMD Reed Switches
• Reed Sensors
• Hall Sensors
• Magnets
• Customized Products
• E-Bike Sensors

Reed sensors and switches offer an effective and sustainable non-touch switching solution. Because they are hermetically sealed, these products are particularly suitable for harsh environments. They are widely used within everyday applications, such as:

• Domestic appliances – washing machines, dishwashers, refrigerators, tumble dryers
• Window/door security systems and access control
• Medical products – pace-makers, hearing aids, position control for beds and chairs
• Speedometers for bikes and E-bikes
• Position control for assembly line equipment
• Coffee machines

Please click on the following link for detailed application notes, illustrating where and how reed sensors and reed switches are used – PIC Applications

How a Reed Sensor works:

Reed sensors are activated by a magnet. The sensor housing contains a reed switch. The reed switch consists of a hermetically sealed glass tube containing a pair of overlapping reeds. The free ends of the reeds, known as the contact area, are plated with Ruthenium or Rhodium and in the presence of a magnetic field the reeds become magnetized. The two ends are attracted together, thus closing the contact. Further information can be found on the Tech Center page on the PIC website –

If you would like to discuss your application call 01258 456360 or email  We will be able to support you with technical advice, provide a quotation and samples for evaluation. You can also download a copy of the PIC catalogue from our catalogue page –