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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: 51
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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.
Index: SES-03104
Index: SES-03104
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Regular price PLN5.61 Price PLN5.61

Magnetic sensor to open door/window - reed switch MC-38 with tape

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 14 x 27 mm. It has installed layer of...
Index: SES-06635
Index: SES-06635
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Regular price PLN3.82 Price PLN3.82

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.
Index: SES-03126
Index: SES-03126
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Regular price PLN5.61 Price PLN5.61

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.
Index: SES-03129
Index: SES-03129
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Regular price PLN4.80 Price PLN4.80

Contact reed switch 10mm

COntact reed in simple case with the length of 10 mm.
Index: SES-03258
Index: SES-03258
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Regular price PLN2.85 Price PLN2.85

Contact reed switch straight 12 mm

Contact reed in the simple case with the 12 mm length.
Index: SES-03259
Index: SES-03259
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Regular price PLN1.71 Price PLN1.71

Door open limit switch - black

A simple door opening sensor in black plastic case. Pressing the bolt causes an open circuit between the two contacts.
Index: SES-03794
Index: SES-03794
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Regular price PLN2.36 Price PLN2.36

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...
Index: SES-03730
Index: SES-03730
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Regular price PLN14.55 Price PLN14.55

Magnetic sensor to open door/window - reed switch HO-03C - brown

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 17 x 11 mm.
Index: SES-04683
Index: SES-04683
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Regular price PLN6.10 Price PLN6.10

Magnetic sensor to open door/window - reed switch relay HO-03N

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 15 x 11 mm.
Index: SES-03254
Index: SES-03254
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Regular price PLN6.26 Price PLN6.26

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 PLN6.42 Price PLN6.42

Magnetic sensor - reed contact CMD615

Wireless proximity sensor activated magnetically. Case dimensions 15 x 6.5 mm.
Index: AKS-10154
Index: AKS-10154
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Regular price PLN5.68 Price PLN5.68

Magnetic sensor to open door/window - reed contact CMD19

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 19 x 23 mm.
Index: SES-03130
Index: SES-03130
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Regular price PLN6.42 Price PLN6.42

Contact reed switch v2 straight 20 mm

Contact reed in the simple case with the length of 20 mm.
Index: SES-03260
Index: SES-03260
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Regular price PLN2.36 Price PLN2.36

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.
Index: MOD-09466
Index: MOD-09466
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Regular price PLN12.11 Price PLN12.11

Magnetic sensor to open door/window - reed contact CMD932P

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 9.0 x 32 mm, it has mounting holes.
Index: SES-03127
Index: SES-03127
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Regular price PLN8.05 Price PLN8.05

Magnetic sensor - reed contact CMD1263 + screws

Wired proximity sensor activated magnetically. Case dimensions - 12 x 63 mm.
Index: AKS-10151
Index: AKS-10151
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Regular price PLN5.61 Price PLN5.61

Inductive Sensor Side Mount - M12

The angular bracket for inductive proximity sensor. The base dimensions: 37 x 20 mm, dimensions of the bracket - 39 x 20 mm.
Index: AKS-11681
Index: AKS-11681
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Regular price PLN2.03 Price PLN2.03

Contact reed switch straight 14 mm

Contact reed in the simple case with the length of 14 mm.
Index: SES-03257
Index: SES-03257
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Regular price PLN2.60 Price PLN2.60

Magnetic sensor to open door/window - reed switch relay HO-03O

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 22 x 11 mm.
Index: SES-03255
Index: SES-03255
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Regular price PLN6.26 Price PLN6.26

Inductive Sensor Side Mount - M8

The angular bracket for inductive proximity sensor. The base dimensions: 28 x 16 mm, dimensions of the bracket - 33 x 16 mm.
Index: AKS-11680
Index: AKS-11680
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Regular price PLN1.79 Price PLN1.79

Magnetic sensor to open door/window - reed relay HO-03L

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 19 x 23 mm.
Index: SES-03253
Index: SES-03253
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Regular price PLN7.24 Price PLN7.24

Inductive Sensor Side Mount - M30

The angular bracket for inductive proximity sensor. The base dimensions: 48 x 41 mm, dimensions of the bracket - 59 x 41 mm.
Index: AKS-11683
Index: AKS-11683
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Regular price PLN5.28 Price PLN5.28

Door / window opening sensor WP8 - 60mm

Limit switch with brazen bushing. Designed for installation as a sensor that detects the opening of doors, windows, hood of a car or trunk. Sensor, by default, is concrete,...
Index: PRO-10255
Index: PRO-10255
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Regular price PLN2.68 Price PLN2.68

Magnetic sensors respond to a magnetic field. So they react to the space in which magnetic forces act. The magnetic field is characterized by various forces - intensity, magnetic field induction and the level of relative magnetic permeability. The magnetic field is created around magnets, conductors with current, and also around a moving electric charge.

In this category, we present the best magnetic sensors, the operation of which is based on the use of reed switches. These are elements that react with a change of state as a result of close contact with an object that emits a magnetic field. Reed switches are one of the key devices when it comes to advanced security systems (non-responsible fencing, window and door sensors).

You will find many different products here. We offer the purchase of magnetic sensors designed to control the state of opening or closing the door. We also have sensors equipped with floats and monitoring the liquid level, such as a Hall sensor (works as a proximity sensor in smartphones). We invite you to familiarize yourself with our entire range, especially with the sets of reed contacts, multisensors, magnetic digital sensor and sensor mounting brackets.

How magnetic sensors work?

The operation of the magnetic sensor is based on the use of a reed switch hidden under the housing. A reed switch is a circuit element that closes and opens when in close contact with an object that has a magnetic field. Technically speaking, a reed switch is a hermetic electrical switch that reacts to a magnetic field. Larger sets also consist of Hall effect sensors, i.e. semiconductor elements.

The devices presented have contacts covered with a thin layer of very conductive material (usually tungsten or gold). The type of material depends on the specific purpose. Reed switches are divided into two types. Less popular - remanence reed switches - are devices that change their state to the opposite under the influence of a magnetic field. After moving away from the object emitting the magnetic field, the reed switch status remains the same. Cognately, the second variant applies to products in which magnetic fields of opposite polarity cause a change of state.

Magnetic sensors and their application in electronics and robotics

Reed relays are used much more often because their mode of operation is to maintain one of the condition only when in close contact with an object that emits a magnetic field. State changes include closing and opening a circuit. A perfect example of such situations would be a field break near a reed switch (and then the circuit will be broken). In the case of security systems, the above situation will apply to opening a door or window. Information about such an event may be registered in the connected microcontroller, and it will react to it, e.g. by triggering an alarm signal. Each electromagnetic reed relay works in a similar way.

Obviously, magnetic sensors are widely used in automation and robotics. If you are an enthusiast of programmable electronics (maybe you already use Arduino or Raspberry Pi), you know how important it is to equip your project with additional components. If you use magnetic sensors in your project, you can go ahead and build alarm systems, property security systems and many other DIY projects!

High-quality magnetic sensors and other components for your projects

In this category You will find many different magnetic sensors. All products are of the highest quality and very compatible. We offer many variants of the practical use of reed switches. The most popular is a magnetic sensor that controls the closing or opening of windows or doors. Such a device will be the basis for the protection of a house or apartment. Properly programmed, it can turn on an audible alarm. Liquid level sensors, which are additionally equipped with a float, which also use a magnetic sensor, are also very useful in the industry. We also recommend the advanced Hall Sensor. Such sensors are commonly used in everyday devices, but are also irreplaceable in industry. You can also purchase single reed contacts from us and use them for your own project.