MSA 1123 2 pin Reed Switch

Reed Switch is a sensor that closes the circuit in presence of the magnetic field. It is a passive electronic switching component used to control the flow of electricity in a circuit. It contains a glass envelop in which two ferrous elastic reeds are enclosed in it with an inert gas called Forming Gas. Normally both of them are apart but when the magnetic field approaches the sensor, both reeds will come together hence completing the circuit.

They are popularly used to detect whether an elevator, washing machine, refrigerator, or photocopier door is open or closed, Electromagnetic relays, Weighing devices level meters, Industrial automation, etc. You can use it with Arduino, Raspberry Pi, PIC etc microcontrollers in your DIY electronic projects for above mentioned applications. It does not provide any analog output, only digital output indicating the precense of a magnet. It is a cheap and small sensor to be integrated in your circuit.

We have similar reed switches in different sizes and output types.

Features and Specifications:-

• Small, cheap and reliable.
• Digital output
• Easy to integrate
• Operating voltage 3.3 to 5V
• Max Current: 20mA. Connecting high power loads directly to the sensor will damage it. Use a relay in between the sensor and the high power load