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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Description Price Application Shape Diameter Length Width Height Dimensions
RS庫存編號 339-768
BrandRS PRO
HK$44.21
單位
Magnetic Proximity Switch Rectangular - 38mm 10mm 25mm 38 x 25 x 10 mm
RS庫存編號 289-7812
製造零件編號PSM BLK
BrandAssemtech
HK$24.94
單位
Proximity Switch Rectangular - 30mm 7mm 20mm 30 x 7 x 20 mm
RS庫存編號 613-8202
製造零件編號MMPSM
BrandAssemtech
HK$22.59
單位
Door Switch, Linear Actuator, Security System Switch Rectangular - 20mm 6mm 14mm 20 x 6 x 14 mm
RS庫存編號 765-9337
製造零件編號MP201801
BrandZF
HK$36.11
單位
Magnetic Proximity Sensor Rectangular - 23.01mm 13.97mm 5.99mm 23.01 x 13.97 x 5.99 mm
RS庫存編號 361-7011
BrandRS PRO
HK$33.30
單位
Proximity Switch Cylindrical 11 mm 28mm - - 11 x 28 mm
RS庫存編號 917-2668
製造零件編號PLC10040
BrandCelduc
HK$124.47
單位
Magnetic Proximity Sensor Rectangular - 32mm 6.8mm 15mm 32 x 15 x 6.8 mm
RS庫存編號 822-4689
製造零件編號GLS-M1
BrandOmron
HK$103.37
單位
Proximity Sensor Rectangular - 50mm 10mm 14mm 50 x 10 x 14 mm
RS庫存編號 917-2640
製造零件編號PCC26720
BrandCelduc
HK$112.11
單位
Magnetic Proximity Sensor Cylindrical M12 80mm - - -
RS庫存編號 917-2678
製造零件編號PTI70020
BrandCelduc
HK$214.63
單位
Magnetic Proximity Sensor Cylindrical M8 32mm - - -
RS庫存編號 289-7856
製造零件編號PRM
BrandAssemtech
HK$8.95
單位
Reed Switch Cylindrical 6 mm 18mm - - 6 x 18 mm
RS庫存編號 917-2665
製造零件編號PLMA0100
BrandCelduc
HK$243.14
單位
Magnetic Proximity Sensor Rectangular - 88mm 12mm 38mm 88 x 38 x 12 mm
RS庫存編號 361-5021
製造零件編號S1467
BrandAssemtech
HK$158.95
單位
Hall Effect Switch Cylindrical - 45mm - - -
RS庫存編號 355-5519
製造零件編號BTL5-F-2814-1S
BrandBALLUFF
HK$373.13
單位
Micropulse Transducer Rectangular - 28mm 40mm 29.9mm 28 x 40 x 29.9 mm
RS庫存編號 917-2646
製造零件編號PCA22330
BrandCelduc
HK$109.75
單位
Magnetic Proximity Sensor Cylindrical M12 80mm - - -
RS庫存編號 331-8613
製造零件編號RSH33
BrandAssemtech
HK$6.40
單位
Filter, Reed Switch, Tachometer, Transducer Rectangular - 19.05mm 3mm 3mm 19.05 x 3 x 3 mm
RS庫存編號 917-2662
製造零件編號PTA80020
BrandCelduc
HK$148.63
單位
Magnetic Proximity Sensor Cylindrical M10 40mm - - -
RS庫存編號 179-2889
製造零件編號P3150000
BrandCelduc
HK$65.93
單位
Proximity Sensor Rectangular - 32mm 6.8mm 15mm 32 x 6.8 x 15 mm
RS庫存編號 791-8557
製造零件編號MWR0032KAC-KH
BrandSensitec
HK$44.71
單位
MagnetoResistive sensor Round 20 mm - 3.5mm - 20.44 x 3.5 mm
RS庫存編號 285-245
BrandRS PRO
HK$43.26
單位
Proximity Switch Rectangular - 32mm 24mm 10mm 32 x 24 x 10 mm
RS庫存編號 124-3806
BrandBALLUFF
HK$225.71
單位
Micropulse Transducer Round 25 mm - - 8mm 25 (Dia.) x 8 mm