Magnetic sensor to open door/window - reed contact CMD918

Index: SES-03126 EAN: 5904422366988

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. Case dimensions - 9.5 x 18 mm.

Magnetic sensor to open door/window - reed contact CMD918
€2.50
€2.03 tax excl.
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Manufacturer: OEM

Description

Wired proximity sensor activated magnetically. The device is used to determine the position of doors and windows. The principle of operation is similar as in a traditional relay. The circuit is open by default, when approaching the magnet, circuit is being closed, which means that through the wires, the current begins to flow.

Connection

The sensor can be easily connected to any cip with a microcontroller, e.g. an Arduino. By attaching a pulling up resistor or by running an internal pull-up, the read can be implemented in digital form.

Communication with Arduino

To verify that the functionality of the sensor, use the attached to the Arduino program - DigitalInputPullup, which is in the menu: File -> Examples -> Digital. It is sufficient to connect one sensor's wire to ground GND, the other to the pin No. 2 of Arduino, and when bringing together both parts of the sensor, the built-in L led connected to pin 13, will light up.

 

Specification

  • Working voltage: up to 40 V
  • Maximum current: 0.1 A
  • Internal resistance: about 200 Ω
  • Range: up to 25 mm
  • Mode of operation: off by default
  • Housing color: white
  • Dimensions: 9.5 x 18 mm
  • Cable length: approx. 20 cm

Includes:

  • The sensor with wires
  • The magnetic element
  • Mounting screws 
  • Self-adhesive tape

 

 

Package width 6 cm
Package height 8 cm
Package depth 0.9 cm
Package weight 0.009 kg

Mateusz

10/31/22

Question: I have a question, could I use it with a buzzer that if the magnet moves away it will trigger a signal ?
Answer: You can give a voltage or signal to one of the wires from the sensor, when the magnet is approached, the circuit will be closed and voltage will appear on the other wire.

Product reviews

Magnetic sensor to open  door/window - reed contact CMD918

5/5

Average grade

2

Customers opinion
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Reviews:

Radosław O. 12.03.2022 Confirmed purchase Translated review
A cool form of window sensor
Radosław Ł. 27.09.2021 Confirmed purchase Translated review
I checked the contract, it works.

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