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.


...
Read more Read less

Filters

Viewing 21 - 40 of 57 products
Results per page
Description Price Application Shape Diameter Length Width Height Dimensions
RS Stock No. 917-2665
Mfr. Part No.PLMA0100
BrandCelduc
SGD36.66
Each
units
Magnetic Proximity Sensor Rectangular - 88mm 12mm 38mm 88 x 38 x 12 mm
RS Stock No. 784-0029
Mfr. Part No.DM25-32-07
SGD26.00
Each
units
Magnetic Sensor Round 32 mm - - 7mm 32 (Dia.) x 7 mm
RS Stock No. 179-2895
Mfr. Part No.P6250000
BrandCelduc
SGD10.52
Each
units
Proximity Sensor Rectangular - 32mm 6.8mm 15mm 32 x 6.8 x 15 mm
RS Stock No. 765-9353
Mfr. Part No.CU103602
BrandZF
SGD63.88
Each
units
Angular Position Sensor - - 57.33mm 48.3mm 17.7mm 57.33 x 48.3 x 17.7 mm
RS Stock No. 765-9362
Mfr. Part No.CU103601
BrandZF
SGD63.86
Each
units
Angular Position Sensor - - 57.33mm 48.3mm 17.7mm 57.33 x 48.3 x 17.7 mm
RS Stock No. 917-2678
Mfr. Part No.PTI70020
BrandCelduc
SGD32.39
Each
units
Magnetic Proximity Sensor Cylindrical M8 32mm - - -
RS Stock No. 355-5531
Mfr. Part No.BTL5-P-3800-2
BrandBALLUFF
SGD30.65
Each
units
Micropulse Transducer Rectangular - 38mm 20mm 14mm 38 x 20 x 14 mm
RS Stock No. 331-8174
Mfr. Part No.RSH32
BrandAssemtech
SGD1.36
Each
units
Filter, Reed Switch, Tachometer, Transducer Rectangular - 27.94mm 4.75mm 4.75mm 27.94 x 4.75 x 4.75 mm
RS Stock No. 837-2007
Mfr. Part No.BTL6-A-3801-2
BrandBALLUFF
SGD35.15
Each
units
Micropulse Transducer Rectangular - 37.6mm 21mm 18mm 37.6 x 21 x 18 mm
RS Stock No. 837-2003
Mfr. Part No.BTL6-A-3800-2
BrandBALLUFF
SGD30.61
Each
units
Micropulse Transducer Rectangular - 37.6mm 21mm 28.8mm 37.6 x 21 x 28.8 mm
RS Stock No. 290-1450
Mfr. Part No.MAG-3010-B
BrandSick
SGD16.00
Each
units
Magnetic Proximity Sensor Cylindrical 30 mm 10mm - - 30 x 10 mm
RS Stock No. 765-9334
Mfr. Part No.MP200702
BrandCherry
SGD13.59
Each
units
Magnetic Proximity Sensor Cylindrical - 25.4mm - - -
RS Stock No. 917-2671
Mfr. Part No.PTI40020
BrandCelduc
SGD13.44
Each
units
Magnetic Proximity Sensor Cylindrical M8 25mm - - -
RS Stock No. 917-2646
Mfr. Part No.PCA22330
BrandCelduc
SGD16.00
Each
units
Magnetic Proximity Sensor Cylindrical M12 80mm - - -
RS Stock No. 361-5009
Mfr. Part No.S1443
BrandAssemtech
SGD4.56
Each
units
Hall Effect Switch Rectangular - 30mm 7mm 20mm 30 x 7 x 20 mm
RS Stock No. 791-8557
Mfr. Part No.MWR0032KAC-KH
BrandSensitec
SGD6.91
Each
units
MagnetoResistive sensor Round 20 mm - 3.5mm - 20.44 x 3.5 mm
RS Stock No. 784-0022
Mfr. Part No.DM60-31-15
SGD18.00
Each
units
Magnetic Sensor Round 31 mm - - 15mm 31 (Dia.) x 15 mm
RS Stock No. 331-8168
Mfr. Part No.RSH01
BrandAssemtech
SGD1.44
Each
units
Filter, Reed Switch, Tachometer, Transducer Rectangular - 12.7mm 1.57mm 3.17mm 12.7 x 1.57 x 3.17 mm
RS Stock No. 331-7597
Mfr. Part No.S1417
BrandAssemtech
SGD24.94
Each
units
Reed Switch Cylindrical - 50mm - - -
RS Stock No. 179-2889
Mfr. Part No.P3150000
BrandCelduc
SGD9.10
Each
units
Proximity Sensor Rectangular - 32mm 6.8mm 15mm 32 x 6.8 x 15 mm
Related Products
The Cherry MP1014 series are digital hall effect ...
Description:
The Cherry MP1014 series are digital hall effect proximity sensors in low profile flange mount housing. Applications for these magnetic sensors include flow sensing, pedal switches and door position sensing. Capable of millions of operationsUnipolar switchingReverse battery protection to -24 ...
Magnetically-controlled proximity sensors for AC voltage.Static switch (triac).The ...
Description:
Magnetically-controlled proximity sensors for AC voltage.Static switch (triac).The sensors can switch loads of up to 500 VA on 220 VAC without the need for special precautions.Built-in surge clipper on PSA 60010 (800 V).
Non-contact linear transducers for use in any application ...
Description:
Non-contact linear transducers for use in any application where linear position feedback is requiredCaptive or floating magnet optionsElectro Magnet option allows multi feedback positionsSimple clamp fixing and plug in connection100-1500mm stroke lengths0-10V or 4-20mA output optionsMagnets available separately.
Non-contact linear transducers for use in any application ...
Description:
Non-contact linear transducers for use in any application where linear position feedback is requiredCaptive or floating magnet optionsElectro Magnet option allows multi feedback positionsSimple clamp fixing and plug in connection100-1500mm stroke lengths0-10V or 4-20mA output optionsMagnets available separately.