Sensor & Switch Magnets

Sensor magnets (also known as reed switches) are electrical switches operated by a magnetic field. They can be used to detect specific actions, like the opening of a door, and are widely used for electrical circuit control.

What are sensor magnets used for?

Sensor magnets can be used in door and window sensors, and are commonly found in burglar alarm systems. They're also widely used for communications. Once the magnet is pulled away from the switch, the reed switch will go back to its original position. A reed relay is when there are one or more reed switches inside a coil.

Why use sensor magnets?

Sensor magnets can be used to reduce current leakage. This is useful for applications in hazardous areas, for example where there's flammable gas in the area, or in medical devices. Sensor magnets are also useful in locations where it isn't possible to make direct contact with the switch, such as in explosive or toxic environments.


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Viewing 1 - 20 of 56 products
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Description Price Application Shape Diameter Length Width Height Dimensions
RS Stock No. 765-9331
Mfr. Part No.MP201901
BrandZF
kr 33,33
Each
Units
Magnetic Proximity Sensor Rectangular - 28.58mm 19.1mm 6.35mm 28.58 x 19.1 x 6.35 mm
RS Stock No. 765-9337
Mfr. Part No.MP201801
BrandZF
kr 39,10
Each
Units
Magnetic Proximity Sensor Rectangular - 23.01mm 13.97mm 5.99mm 23.01 x 13.97 x 5.99 mm
RS Stock No. 289-7856
Mfr. Part No.PRM
BrandAssemtech
kr 20,64
Each
Units
Reed Switch Cylindrical 6 mm 18mm - - 6 x 18 mm
RS Stock No. 536-1710
BrandRS PRO
kr 12,83
Each
Units
Transducer Cylindrical 4 mm 19mm - - 4 x 19 mm
RS Stock No. 339-768
BrandRS PRO
kr 73,11
Each
Units
Magnetic Proximity Switch Rectangular - 38mm 10mm 25mm 38 x 25 x 10 mm
RS Stock No. 765-9347
Mfr. Part No.MP200701
BrandZF
kr 94,01
Each
Units
Magnetic Proximity Sensor Cylindrical - 25.4mm - - -
RS Stock No. 361-7011
BrandRS PRO
kr 45,24
Each
Units
Proximity Switch Cylindrical 11 mm 28mm - - 11 x 28 mm
RS Stock No. 917-2678
Mfr. Part No.PTI70020
BrandCelduc
kr 248,15
Each
Units
Magnetic Proximity Sensor Cylindrical M8 32mm - - -
RS Stock No. 289-7812
Mfr. Part No.PSM BLK
BrandAssemtech
kr 35,90
Each
Units
Proximity Switch Rectangular - 30mm 7mm 20mm 30 x 7 x 20 mm
RS Stock No. 784-0022
Mfr. Part No.DM60-31-15
kr 142,00
Each
Units
Magnetic Sensor Round 31 mm - - 15mm 31 (Dia.) x 15 mm
RS Stock No. 466-1479
Mfr. Part No.T-62 N/S
kr 61,91
Each
Units
Electronic Magnetic Sensor Cylindrical 23 mm 10mm - - 23 x 10 mm
RS Stock No. 765-9334
Mfr. Part No.MP200702
BrandCherry
kr 143,97
Each
Units
Magnetic Proximity Sensor Cylindrical - 25.4mm - - -
RS Stock No. 917-2662
Mfr. Part No.PTA80020
BrandCelduc
kr 168,39
Each
Units
Magnetic Proximity Sensor Cylindrical M10 40mm - - -
RS Stock No. 791-8557
Mfr. Part No.MWR0032KAC-KH
BrandSensitec
kr 40,78
Each
Units
MagnetoResistive sensor Round 20 mm - 3.5mm - 20.44 x 3.5 mm
RS Stock No. 361-4927
BrandRS PRO
kr 35,32
Each
Units
Proximity Switch Rectangular - 32mm 8mm 15mm 32 x 8 x 15 mm
RS Stock No. 290-1450
Mfr. Part No.MAG-3010-B
BrandSick
kr 89,69
Each
Units
Magnetic Proximity Sensor Cylindrical 30 mm 10mm - - 30 x 10 mm
RS Stock No. 765-9353
Mfr. Part No.CU103602
BrandZF
kr 400,35
Each
Units
Angular Position Sensor - - 57.33mm 48.3mm 17.7mm 57.33 x 48.3 x 17.7 mm
RS Stock No. 765-9340
Mfr. Part No.AS201801
BrandZF
kr 31,68
Each
Units
Magnetic Reed Sensor Rectangular - - - - -
RS Stock No. 290-0621
Mfr. Part No.MAG-3015-B
BrandSick
kr 107,63
Each
Units
Magnetic Proximity Sensor Cylindrical 31 mm 15mm - - 31 x 15 mm
RS Stock No. 917-2665
Mfr. Part No.PLMA0100
BrandCelduc
kr 275,39
Each
Units
Magnetic Proximity Sensor Rectangular - 88mm 12mm 38mm 88 x 38 x 12 mm
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