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 41 - 60 of 99 products
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Description Price Application Shape Diameter Length Width Height Dimensions
RS stock no. 745-6194
Mfr. Part No.GLS-1
BrandOmron
R 685.97
Each
units
Proximity Sensor Rectangular - 50mm 14mm 14mm 50 x 14 x 14 mm
New
RS stock no. 200-9246
Mfr. Part No.XXS30B2VM12
R 5,701.03
Each
units
- - - - - - -
New
RS stock no. 200-9250
Mfr. Part No.XXS30P1AM12
R 4,654.27
Each
units
- - - - - - -
New
RS stock no. 200-9255
Mfr. Part No.XXS30P2PM12
R 4,525.31
Each
units
- - - - - - -
RS stock no. 784-0022
Mfr. Part No.DM60-31-15
R 237.82
Each
units
Magnetic Sensor Round 31 mm - - 15mm 31 (Dia.) x 15 mm
New
RS stock no. 200-9237
Mfr. Part No.XXA30S2PM12
R 5,568.70
Each
units
- - - - - - -
New
RS stock no. 200-9222
Mfr. Part No.XXA30B1VM12
R 5,480.67
Each
units
- - - - - - -
New
RS stock no. 200-9244
Mfr. Part No.XXS30B2PM12
R 5,124.03
Each
units
- - - - - - -
RS stock no. 124-3807
BrandBALLUFF
R 756.77
Each
units
Micropulse Transducer Rectangular - 55mm 20mm 21mm 55 x 20 x 21 mm
RS stock no. 355-5531
Mfr. Part No.BTL5-P-3800-2
BrandBALLUFF
R 431.71
Each
units
Micropulse Transducer Rectangular - 38mm 20mm 14mm 38 x 20 x 14 mm
New
RS stock no. 200-9233
Mfr. Part No.XXA30S1AM12
R 5,700.13
Each
units
- - - - - - -
New
RS stock no. 200-9259
Mfr. Part No.XXS30P4VM12
R 5,565.45
Each
units
- - - - - - -
RS stock no. 765-9347
Mfr. Part No.MP200701
BrandZF
R 186.91
Each
units
Magnetic Proximity Sensor Cylindrical - 25.4mm - - -
New
RS stock no. 200-9220
Mfr. Part No.XXA30B1AM12
R 5,480.67
Each
units
- - - - - - -
New
RS stock no. 200-9226
Mfr. Part No.XXA30B2VM12
R 5,924.09
Each
units
- - - - - - -
RS stock no. 866-2583
Mfr. Part No.M1219-1
BrandAssemtech
R 23.10
Each
units
- Cylindrical 3 mm - - 1mm 3 (Dia.) x 1 mm
New
RS stock no. 200-9234
Mfr. Part No.XXA30S1PM12
R 5,125.29
Each
units
- - - - - - -
New
RS stock no. 200-9228
Mfr. Part No.XXA30P1PM12
R 4,223.44
Each
units
- - - - - - -
New
RS stock no. 200-9229
Mfr. Part No.XXA30P1VM12
R 4,799.18
Each
units
- - - - - - -
RS stock no. 811-0745
BrandRS PRO
R 66.94
Each
units
Linear Actuator Rectangular - 32mm 13mm 8mm 32 x 13 x 8 mm