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 1 - 20 of 100 products
Results per page
Description Price Application Shape Diameter Length Width Height Dimensions Detection Range Output Type Terminal Type Thread Size Body Style IP Rating Transducer Frequency
RS Stock No. 822-4689
Mfr. Part No.GLS-M1
BrandOmron
MYR63.37
Each
units
Proximity Sensor Rectangular - 50mm 10mm 14mm 50 x 10 x 14 mm - - - - - - -
RS Stock No. 289-7812
Mfr. Part No.PSM BLK
BrandAssemtech
MYR19.18
Each
units
Proximity Switch Rectangular - 30mm 7mm 20mm 30 x 7 x 20 mm - - - - - - -
RS Stock No. 536-1710
BrandRS PRO
MYR6.87
Each
units
Transducer Cylindrical 4 mm 19mm - - 4 x 19 mm - - - - - - -
RS Stock No. 765-9340
Mfr. Part No.AS201801
BrandZF
MYR13.52
Each
units
Magnetic Reed Sensor Rectangular - - - - - - - - - - - -
RS Stock No. 765-9331
Mfr. Part No.MP201901
BrandZF
MYR18.89
Each
units
Magnetic Proximity Sensor Rectangular - 28.58mm 19.1mm 6.35mm 28.58 x 19.1 x 6.35 mm - - - - - - -
RS Stock No. 791-8557
Mfr. Part No.MWR0032KAC-KH
BrandSensitec
MYR23.55
Each
units
MagnetoResistive sensor Round 20 mm - 3.5mm - 20.44 x 3.5 mm - - - - - - -
RS Stock No. 289-7856
Mfr. Part No.PRM
BrandAssemtech
MYR4.13
Each
units
Reed Switch Cylindrical 6 mm 18mm - - 6 x 18 mm - - - - - - -
RS Stock No. 765-9343
Mfr. Part No.AS201901
BrandZF
MYR21.36
Each
units
Magnetic Reed Sensor Rectangular - - - - - - - - - - - -
RS Stock No. 917-2668
Mfr. Part No.PLC10040
BrandCelduc
MYR77.44
Each
units
Magnetic Proximity Sensor Rectangular - 32mm 6.8mm 15mm 32 x 15 x 6.8 mm - - - - - - -
RS Stock No. 361-4927
BrandRS PRO
MYR17.45
Each
units
Proximity Switch Rectangular - 32mm 8mm 15mm 32 x 8 x 15 mm - - - - - - -
RS Stock No. 339-768
BrandRS PRO
MYR29.95
Each
units
Magnetic Proximity Switch Rectangular - 38mm 10mm 25mm 38 x 25 x 10 mm - - - - - - -
RS Stock No. 331-8168
Mfr. Part No.RSH01
BrandAssemtech
MYR6.87
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. 765-9347
Mfr. Part No.MP200701
BrandZF
MYR44.64
Each
units
Magnetic Proximity Sensor Cylindrical - 25.4mm - - - - - - - - - -
RS Stock No. 917-2678
Mfr. Part No.PTI70020
BrandCelduc
MYR129.08
Each
units
Magnetic Proximity Sensor Cylindrical M8 32mm - - - - - - - - - -
RS Stock No. 355-5531
Mfr. Part No.BTL5-P-3800-2
BrandBALLUFF
MYR126.59
Each
units
Micropulse Transducer Rectangular - 38mm 20mm 14mm 38 x 20 x 14 mm - - - - - - -
RS Stock No. 917-2662
Mfr. Part No.PTA80020
BrandCelduc
MYR89.38
Each
units
Magnetic Proximity Sensor Cylindrical M10 40mm - - - - - - - - - -
RS Stock No. 866-2586
Mfr. Part No.M1219-2
BrandAssemtech
MYR6.87
Each
units
- Cylindrical 3 mm - - 2mm 3 (Dia.) x 2 mm - - - - - - -
RS Stock No. 331-8613
Mfr. Part No.RSH33
BrandAssemtech
MYR5.15
Each
units
Filter, Reed Switch, Tachometer, Transducer Rectangular - 19.05mm 3mm 3mm 19.05 x 3 x 3 mm - - - - - - -
RS Stock No. 765-9353
Mfr. Part No.CU103602
BrandZF
MYR163.51
Each
units
Angular Position Sensor - - 57.33mm 48.3mm 17.7mm 57.33 x 48.3 x 17.7 mm - - - - - - -
RS Stock No. 784-0022
Mfr. Part No.DM60-31-15
MYR68.04
Each
units
Magnetic Sensor Round 31 mm - - 15mm 31 (Dia.) x 15 mm - - - - - - -