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 41 - 60 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. 791-8557
Mfr. Part No.MWR0032KAC-KH
BrandSensitec
$8.80
Each
units
MagnetoResistive sensor Round 20 mm - 3.5mm - 20.44 x 3.5 mm - - - - - - -
RS Stock No. 290-0621
Mfr. Part No.MAG-3015-B
BrandSick
$19.00
Each
units
Magnetic Proximity Sensor Cylindrical 31 mm 15mm - - 31 x 15 mm - - - - - - -
RS Stock No. 331-8613
Mfr. Part No.RSH33
BrandAssemtech
$1.65
Each
units
Filter, Reed Switch, Tachometer, Transducer Rectangular - 19.05mm 3mm 3mm 19.05 x 3 x 3 mm - - - - - - -
RS Stock No. 331-8168
Mfr. Part No.RSH01
BrandAssemtech
$2.21
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. 179-2889
Mfr. Part No.P3150000
BrandCelduc
$11.76
Each
units
Proximity Sensor Rectangular - 32mm 6.8mm 15mm 32 x 6.8 x 15 mm - - - - - - -
RS Stock No. 866-2583
Mfr. Part No.M1219-1
BrandAssemtech
$2.21
Each
units
- Cylindrical 3 mm - - 1mm 3 (Dia.) x 1 mm - - - - - - -
RS Stock No. 917-2684
Mfr. Part No.PWB11500
BrandCelduc
$20.49
Each
units
Magnetic Proximity Sensor Rectangular - 47.7mm 9.7mm 14mm 47.7 x 14 x 9.7 mm - - - - - - -
New
RS Stock No. 200-9229
Mfr. Part No.XXA30P1VM12
$412.28
Each
units
- - - - - - - 155 → 1000 mm 0 → 10 V Male Thread Socket M12 Barrel IP65 120kHz
New
RS Stock No. 200-9220
Mfr. Part No.XXA30B1AM12
$469.55
Each
units
- - - - - - - 155 → 1000 mm 4 → 20 mA Male Thread Socket M12 Barrel IP65 120kHz
New
RS Stock No. 200-9259
Mfr. Part No.XXS30P4VM12
$478.35
Each
units
- - - - - - - 420 → 4000 mm 0 → 10 V Male Thread Socket M12 Barrel IP65 80kHz
New
RS Stock No. 200-9247
Mfr. Part No.XXS30B4AM12
$536.68
Each
units
- - - - - - - 420 → 4000 mm 4 → 20 mA Male Thread Socket M12 Barrel IP65 80kHz
New
RS Stock No. 200-9261
Mfr. Part No.XXS30S1PM12
$427.79
Each
units
- - - - - - - 155 → 1000 mm PNP Male Thread Socket M12 Barrel IP65 120kHz
New
RS Stock No. 200-9249
Mfr. Part No.XXS30B4VM12
$536.68
Each
units
- - - - - - - 420 → 4000 mm 0 → 10 V Male Thread Socket M12 Barrel IP65 80kHz
New
RS Stock No. 200-9262
Mfr. Part No.XXS30S1VM12
$478.35
Each
units
- - - - - - - 155 → 1000 mm 0 → 10 V Male Thread Socket M12 Barrel IP65 120kHz
RS Stock No. 837-2003
Mfr. Part No.BTL6-A-3800-2
BrandBALLUFF
$39.98
Each
units
Micropulse Transducer Rectangular - 37.6mm 21mm 28.8mm 37.6 x 21 x 28.8 mm - - - - - - -
New
RS Stock No. 200-9230
Mfr. Part No.XXA30P2AM12
$450.46
Each
units
- - - - - - - 155 → 2000 mm 4 → 20 mA Male Thread Socket M12 Barrel IP65 120kHz
RS Stock No. 784-0029
Mfr. Part No.DM25-32-07
$28.00
Each
units
Magnetic Sensor Round 32 mm - - 7mm 32 (Dia.) x 7 mm - - - - - - -
New
RS Stock No. 200-9226
Mfr. Part No.XXA30B2VM12
$507.73
Each
units
- - - - - - - 155 → 2000 mm 4 → 20 mA Male Thread Socket M12 Barrel IP65 120kHz
New
RS Stock No. 200-9265
Mfr. Part No.XXS30S2VM12
$517.24
Each
units
- - - - - - - 155 → 2000 mm 0 → 10 V Male Thread Socket M12 Barrel IP65 120kHz
New
RS Stock No. 200-9253
Mfr. Part No.XXS30P1VM12
$400.57
Each
units
- - - - - - - 105 → 1000 mm 0 → 10 V Male Thread Socket M12 Barrel IP65 200kHz
Related Products
M12 ´ 1 threaded barrel Chrome-plated brass Factor ...
Description:
M12 ´ 1 threaded barrel Chrome-plated brass Factor 1 for all metals Resistant to magnetic fields Large switching distanceDC 4-wire, 10…30 VDCM12 x 1 connector Configuration and communication via IO-Link v11 or via standard I/OElectrical outputs independently configurable Switching distance ...
Threaded barrel, M18 x 1Brass, PTFE-coated Factor 1 ...
Description:
Threaded barrel, M18 x 1Brass, PTFE-coated Factor 1 for all metals Resistant to magnetic fields Large switching distanceDC 4-wire, 10…30 VDCM12 x 1 connector Configuration and communication via IO-Link v11 or via standard I/OElectrical outputs independently configurable Switching distance can ...
Threaded barrel, M30 x 15Brass, PTFE-coated Factor 1 ...
Description:
Threaded barrel, M30 x 15Brass, PTFE-coated Factor 1 for all metals Resistant to magnetic fields Large switching distanceDC 4-wire, 10…30 VDCM12 x 1 connector Configuration and communication via IO-Link v1.1 or via standard I/OElectrical outputs independently configurable Switching distance can ...
Rectangular, height 40 mm Variable orientation of active ...
Description:
Rectangular, height 40 mm Variable orientation of active face in 5 directions without tools Plastic, PBT‐GF30‐V0High luminance corner LEDs Optimum view on supply voltage and switching state from any position Factor 1 for all metals Increased switching distance Resistant to ...