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Magnetic sensors

Are you looking for good magnetic sensors? You've come to the right place! Magnetic sensors are increasingly used in various branches of production and business. These are components without which it is difficult to create some types of Internet of Things projects. Why?

Products: 48
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Magnetic sensor to open Door / window - reed contact CMD14 + screws

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 14 x 27 mm.
5.0 (15)
Index: SES-03104
Index: SES-03104
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Regular price €1.90 Price €1.90

Angle holder for an inductive sensor - M12

Angular mount for inductive proximity sensor. The dimensions of the base are 37 x 20 mm , the dimensions of the holder are 39 x 20 mm .
5.0 (4)
Index: AKS-11681
Index: AKS-11681
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Regular price €0.90 Price €0.90

Magnetic sensor - reed contact CMD1423 + screws

Wireless proximity sensor activated magnetically. Case dimensions - 14 x 23 mm.
4.9 (19)
Index: AKS-10152
Index: AKS-10152
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Regular price €2.50 Price €2.50

Magnetic sensor door/window - reed switch

Wireless proximity sensor activated magnetically. The device is used mainly to determine the position of doors and windows. Case dimensions - 11 x 16 mm.
5.0 (2)
Index: DNG-10159
Index: DNG-10159
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Regular price €1.50 Price €1.50

Contact reed switch v2 straight 20 mm

Contact reed in the simple case with the length of 20 mm.
5.0 (2)
Index: SES-03260
Index: SES-03260
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Regular price €0.90 Price €0.90

Module with Hall sensor, magnetic field

Module with Hall sensor, analog magnetic switch. It allows for the detection of the magnetic field. The module has no soldered passive elements. It works with voltage of 5 V.
5.0 (8)
Index: OST-14290
Index: OST-14290
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Regular price €1.00 Price €1.00

Angle holder for an inductive sensor - M18

The angular bracket for inductive proximity sensor. The base dimensions: 43 x 26 mm, dimensions of the bracket - 46 x 26 mm.
Index: AKS-11682
Index: AKS-11682
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Regular price €0.90 Price €0.90

Contact reed switch straight 38 mm

Contact reed in the simple case with the length of 38 mm.
Index: SES-03263
Index: SES-03263
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Regular price €1.90 Price €1.90

Magnetic sensor - reed contact CMD1263 + screws

Wired proximity sensor activated magnetically. Case dimensions - 12 x 63 mm.
5.0 (2)
Index: AKS-10151
Index: AKS-10151
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Regular price €2.00 Price €2.00

Contact reed switch straight 14 mm

Contact reed in the simple case with the length of 14 mm.
5.0 (5)
Index: SES-03257
Index: SES-03257
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Regular price €0.90 Price €0.90

Angle holder for an inductive sensor - M8

The angular bracket for inductive proximity sensor. The base dimensions: 28 x 16 mm, dimensions of the bracket - 33 x 16 mm.
5.0 (2)
Index: AKS-11680
Index: AKS-11680
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Regular price €0.90 Price €0.90

Contact reed switch 10mm

COntact reed in simple case with the length of 10 mm.
4.9 (7)
Index: SES-03258
Index: SES-03258
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Regular price €0.90 Price €0.90

Water level sensor - 10W float reed switch

The sensor allows to control the water level in the tank. It consists of a float, which rises when the volume of liquid increases, causing the reed relay to open.
4.9 (6)
Index: SES-07272
Index: SES-07272
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Regular price €5.90 Price €5.90

Antclabs BLTouch v3.1 - auto bed leveling sensor for 3D printers

BLTouch is a type of semiconductor Hall sensor . It is used in 3D printers as an auto-leveling sensor to accurately measure the inclination of the work table surface. It can be...
5.0 (5)
Index: ANS-19531
Index: ANS-19531
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Regular price €38.90 Price €38.90

Aquarium Tank Liquid Water Level Sensor Float Switch 1MPa

The sensor allows you to control the water level in the tank. It consists of a float which, under the influence of a reduction of the volume of the fluid, decreases, causing a...
4.9 (10)
Index: SES-07244
Index: SES-07244
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Regular price €4.00 Price €4.00

Reed switch normally - plastic 14,5mm

Reed contact in plastic straight housing, 14.5 mm long.
5.0 (2)
Index: MOD-09465
Index: MOD-09465
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Regular price €1.50 Price €1.50

Magnetic sensor to open door/window - reed contact CMD918

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 9.5 x 18 mm.
5.0 (3)
Index: SES-03126
Index: SES-03126
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Regular price €2.50 Price €2.50

Magnetic sensor to open door / window - reed contact CMD932

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 9.0 x 32 mm.
Index: SES-03128
Index: SES-03128
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Regular price €2.90 Price €2.90

Liquid level sensor CMW55 - magnetic

The sensor allows you to control the water level in the tank. It consists of a float with a magnet which, under the force of buoyancy, is shifted, causing a short circuit of...
5.0 (6)
Index: SES-03730
Index: SES-03730
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Regular price €4.90 Price €4.90

Reed switch normally - plastic 14mm - 5pcs.

Reed contact in the plastic straight case with the length of 14 mm.  The set contains 5 reed contacts.
4.9 (10)
Index: MOD-09466
Index: MOD-09466
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Regular price €5.00 Price €5.00

Magnetic sensor to open door/window - reed contact CMD20

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 20 x 64 mm.
5.0 (1)
Index: SES-03129
Index: SES-03129
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Regular price €1.90 Price €1.90

Magnetic door/window sensor - actuator - 57140-000 Littelfuse

Miniature magnetic activator with dimensions of 23 x 14 x 6 mm made of AlNiCo-5, intended for mounting with sensors on a flange. Thanks to its hermetic housing and solid...
Index: TME-24440
Index: TME-24440
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Regular price €1.90 Price €1.90

Inductive Sensor Straight Mount - M18

Straight holder for inductive proximity sensor. Dimensions - 26 x 86 mm.
5.0 (1)
Index: AKS-11684
Index: AKS-11684
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Regular price €1.90 Price €1.90

Magnetic Contact Switch WS301 - LoRaWAN - white - Milesight WS301-868M

The Milesight WS301 sensor is an advanced device for monitoring the opening or closing status of doors and windows . It uses LoRaWAN wireless technology and offers...
5.0 (1)
Index: STV-23276
Index: STV-23276
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Regular price €66.90 Price €66.90

Magnetic sensor - Many applications in electronics and robotics

The magnetic sensor available in this category mostly bases its operation on the use of a reed switch hidden under the housing. A reed switch is a circuit element that closes and opens upon close contact with an object having a magnetic field. Such a device has contacts covered with a thin layer of very conductive material (e.g. tungsten or gold), which is selected depending on the specific purpose. Reed switches are divided into two types. Less popular - remanent - are those that, under the influence of a magnetic field, change their state to the opposite one, but after moving away the object emitting the magnetic field, the state remains the same (without introducing any force or energy into the system). Subsequent contact with a magnetic field of opposite polarity will cause a change in state. Non-remanence reed switches are much more often used - they operate by maintaining one of the states only during close contact with an object emitting a magnetic field. State changes involve closing and opening the circuit - for example, after removing the magnet from near the reed switch, the circuit will be interrupted (opening the window). Information about such an event may be registered in the connected microcontroller, which will react to it, for example by activating an alarm signal. Every reed relay - electromagnetic - works in a similar way.

What will you find in our offer?

We offer many variants of practical use of reed switches. The most popular is a magnetic sensor that controls the closing or opening of windows or doors. Based on the example described above, it can act as an alarm switch. Liquid level sensors, additionally equipped with a float, which also use a magnetic sensor, are also very useful in industry. The Hall sensor is an element that also uses close contact with a magnetic field - the device uses the Hall effect. Thanks to it, you can easily measure, for example, the number of revolutions made by the engine by attaching a small magnet to the engine shaft. Such sensors are commonly used in everyday devices, but they are also irreplaceable in industry. You can also purchase individual reed contacts from us and use them for your own project.

Magnetic sensors - FAQ

A magnetic sensor is an electronic component that detects changes in the magnetic field. They are used, for example, as part of door and window opening sensors in alarm systems .

Magnetic field sensors use the operation of reed switches. As a result of changes in the magnetic field, the reed switch changes its state, which closes or opens the electric circuit and results in a change in the signal received from the sensor. You can learn more about the operation of reed switches in our article " Reed switch - what is it for and how does it work? ".

The easiest way to check a magnetic sensor is to use a resistance meter .

A Hall effect sensor (Hall sensor) is an electronic component that measures the magnetic field strength and current , using the Hall effect (the relationship between the presence of a magnetic field and the flow of electricity through conductors).