Reed Switch | Normally Open Magnetic Sensor | 2x14mm for Arduino Projects

This normally open reed switch is a simple magnetic sensor inside a 2x14mm glass tube. The switch closes an electrical circuit when a magnet gets close to it. It's a way to detect position, closeness, or movement in your projects without touching anything. Features and Benefits - Normally Open Operation - The circuit is open by default. It closes only when a magnetic field is near. This makes it a direct trigger for events with microcontrollers, like an Arduino. - Sealed Glass Body - The contacts inside are protected from dust, water, and rust. This makes sure the reed switch works steadily for a long time, even in damp places. - No-Contact Sensing - A magnet activates it, so there are no moving parts to wear out. This magnetic switch is built to last for millions of activations. - Low Power Use - It needs very little power to work and connects with just two wires. This makes it easy to add to battery-powered devices and simple microcontroller circuits. Applications - Home Security Systems - Install it on doors and windows as a magnetic contact switch. When the magnet moves away, the circuit change can set off an alarm or send a message. - Anemometers and Flow Meters - Attach a magnet to a spinning part. The reed switch will create a pulse with each turn. You can use this to measure speed or flow rate. - Project Enclosure Detection - Use it to sense if a lid or door on your project is shut. This can turn on an internal light or start a specific function. What It Is This Reed Switch is a Normally Open (N/O) Magnetic Sensor, designed as a switching transducer. It operates as a type of proximity sensor, detecting the presence of a magnetic field. When a magnet comes within range, the switch closes, completing an electrical circuit. This particular model measures 2 x 14 mm, making it suitable for compact integration into various projects. It is available in quantities from 10 to 1000 pieces. Key Uses & Applications This Normally Open Reed Switch is primarily used in Arduino Projects due to its specified compatibility. As a magnetic proximity sensor, it can be employed for various detection tasks. For example, it can sense when a door or window is open or closed, act as a limit switch in small mechanisms, or detect rotational position in simple encoders. Unlike an optical sensor, it relies on magnetic fields, which can be advantageous in dusty or dark environments. How to Choose When selecting a reed switch, consider its contact configuration; this model is Normally Open (N/O). Dimensions are crucial for integration, with this sensor measuring 2 x 14 mm. Ensure compatibility with your electronics, such as Arduino. To test a proximity sensor like this, you would typically connect it to a multimeter in continuity mode and bring a magnet close to observe the circuit closing. Consider the required quantity, available from 10 to 1000 pieces, for your project needs.