All Products

SKU: DF-SEN0387

This magnetic switch consists of two parts: a reed switch sensor with cable and a magnet trigger in a plastic housing. When the magnet is brought within approximately 1 cm of the sensor, the reed switch closes, allowing you to detect position changes, door/window states, and proximity events. Th...

SKU: SF-SEN-28869 · MPN: SEN-28869

This anemometer measures wind speed using rotating cups that turn an enclosed magnet. On each rotation, the magnet closes a reed switch, producing a simple pulse output that can be counted by your electronics.The output is available on the two inner conductors of the RJ11 connector, pins 2 and 3....

SKU: DF-SEN0481

This magnetic switch (reed switch) consists of two magnetic reeds (usually composed of iron and nickel) sealed in a plastic case. The two magnetic reeds are overlapped but there is a small gap between them. When a suitable external magnetic field comes within 2cm, the two magnetic reeds will cont...

SKU: AF-375

A magnetic reed switch encased in an ABS plastic shell, commonly used to detect when a door, window, or drawer is opened. The switch half contains a normally-open reed contact, and the other half is a magnet. When the magnet is within 13 mm (0.5"), the reed switch closes, completing the circuit. ...

SKU: SF-COM-13247

This is the Magnetic Door Switch Set, a small reed switch assembly specifically designed to alert you when doors, drawers, or any other aperture opens. These types of switches are primarily used in home security systems. One half of the assembly set on a window or door frame and the other attache...

SKU: TB-SY4036

This small, lightweight 5V SPST reed relay is designed for PCB mounting in a standard DIL (Dual In-Line) package. It switches up to 1A DC with a low 0.1W power consumption, making it suitable for low-power switching applications in sensor circuits, security systems, and instrumentation. Key Feat...

SKU: SF-COM-10601

An insulated reed switch that closes when exposed to a magnetic field and opens when the field is removed. The encapsulated design is more durable than glass reed switches and can be easily populated on a PCB. Key Features Magnetic Activation – Non-contact switching via magnetic field 1 A Max...

SKU: LB-LR0018

A compact reed switch module that closes its circuit when a magnetic field is present. Inside the glass envelope, a pair of ferromagnetic metal contacts come together when a magnet is brought close, and spring apart when the magnet is removed — providing a simple, contactless switching mechanism....

SKU: SF-DEV-13343

The LilyPad Reed Switch is a simple breakout for a reed switch that will make it easy to use in e-textiles circuits in exactly the same manner that you can currently use the LilyPad Button and Switch. In order to make it more durable for wearable use, we’ve used a different style of reed switch, ...

SKU: EF-EF04075

OCTOPUS Magnetic Switch is a kind of electric brick carrying magnetic switch and compatible with OCTOPUS series. It mainly consists of WBSF12 dry reed switch. WBSF12 is a dry reed tube with frequently open contact point. When magnet come close to a certain distance,switch within WBSF12 will cl...

SKU: SF-SEN-15901

This Weather Meter Kit provides the three core sensors for a DIY weather station: an anemometer (wind speed), a wind vane (wind direction), and a rain gauge. All three sensors use passive magnetic reed switches rather than active electronics, making them simple to interface with any microcontroll...

SKU: SF-COM-08642

This is a small device called a reed switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the reeds separate and the switch opens. This makes for a great non-contact switch. ...

SKU: SF-SEN-28868 · MPN: SEN-28868

This wind vane is used to indicate the direction from which the wind is blowing. Inside the vane are eight switches, each paired with a unique resistor, allowing a microcontroller to read direction based on the vane’s position.As the vane rotates, a magnet closes the reed switches. In some positi...

SKU: LB-LS7682

This spare outdoor unit set is designed for use with professional wireless weather stations, providing the essential sensors needed to accurately monitor local weather conditions. Ideal as a replacement set or for custom weather station projects, it delivers reliable measurements of wind, rainfal...

SKU: AF-5899 · MPN: ADA5899

The Adafruit ADG728 is a solid-state 1-to-8 analog matrix switch controlled over I2C. Unlike relays, analog switches have no moving parts, won't wear out, and switch in approximately 100 ns. Use it to route up to 8 analog signals (up to 5V) to a single common pin, or vice versa — the signal path ...

SKU: SF-COM-08643

These are small rare earth magnets - 0.25" cubed. Composed of Neodymium/Iron/Boron (NdFeB), these magnets are curiously strong and make for a great way to attach tools to a metal workbench, hold small children to a fridge, and as a trigger for reed switches. Activates the reed switch (shown belo...

SKU: SF-COM-08644

These are very small rare earth magnets - 0.125" cubed. Composed of Neodymium/Iron/Boron (NdFeB), these magnets are curiously strong and make for a great way to attach tools to a metal workbench, hold small children to a fridge, and as a trigger for reed switches. Don’t let the photo fool you - t...

SKU: LB-MICRO-EXPLOR

Note: This is the new version of our Micro:Bit 24 Bit kit and has been updated for the new Micro:Bit V2! The Little Bird Micro:bit Explorer's Kit includes more than 24 tutorials that teach you both how to use the micro:bit with various sensors and electronics with real-world applications. Acces...

SKU: LB-24-REED

A reed switch is an electrical switch which is operated when a magnetic field is brought near to it.  Check out our tutorial here Digital Output (DO)GND: In electronics, we define a point in a circuit to be a kind of zero volts or 0V reference point, on which to base all other voltage measu...

SKU: LB-MICRO-EXPLOR-NO-BIT

The Little Bird Micro:bit Explorer's Kit includes more than 24 tutorials that teach you both how to use the micro:bit with various sensors and electronics with real-world applications. Access to the tutorials are available on our website for free, forever! There is a speaker and microphone,...