Switch 2x14mm | Normally Open Magnetic Sensor | For Arduino DIY

This reed switch is a simple sensor that turns on when a magnet is near it. It's a normally open (N/O) switch. This means the circuit is off until a magnet comes close. Its small 2x14mm glass body fits easily into tight spots. Features and Benefits - Normally Open Function - The internal contacts of this switch are separate by default. They touch to close the circuit only when a magnet is present. - Hermetically Sealed Body - The two reeds are sealed inside a glass tube. This protects them from dust, moisture, and rust. This helps them work reliably for a long time. - No Standby Power - This magnetic switch doesn't use any power when it's off. This makes it good for battery-powered security systems and portable devices. - Vibration Resistance - This glass reed switch is made to avoid accidental triggers from small shakes. It only turns on when it's supposed to. Applications - Security Systems - This switch works well for door and window alarms. When a magnet on the door moves away, the switch opens. This can set off an alert. - Arduino and DIY - It's a simple way to detect position with a microcontroller. Use it to see if a box lid is closed, count wheel spins, or make a hidden magnetic key. - Proximity Sensing - It can be used in industrial machines to confirm a safety guard is shut. It can also detect where a moving part is without touching it. What It Is This product is a metal, Normally Open (N/O) magnetic sensor, specifically a reed switch, measuring 2 mm x 14 mm. It functions as a proximity sensor, detecting the presence of a magnetic field without physical contact. When a magnet is brought close, the internal contacts close, completing a circuit. This type of electronics module is commonly used in various DIY projects, particularly with Arduino. Understanding how proximity sensors work is key to integrating this component effectively into your builds. Key Uses & Applications These 2x14mm magnetic sensors are designed for Arduino DIY applications. As a Normally Open reed switch, they can be used to detect the opening and closing of doors or windows, the position of moving parts, or as a simple on/off switch triggered by a magnet. They are suitable for projects requiring non-contact sensing, offering a reliable method for inputting data into an Arduino. The compact dimensions make them versatile for integration into small-scale electronics. How to Choose When selecting a magnetic sensor, consider the required dimensions and operation type. This product offers a 2 mm x 14 mm metal reed switch with Normally Open operation, suitable for Arduino DIY. To test a proximity sensor like this, you can use a multimeter to check for continuity across its leads while bringing a magnet near. For applications requiring different sensing distances or environmental conditions, you might explore other proximity sensor types, such as optical sensors or barrel sensors, which detect objects differently.