The CO2 (Carbon Dioxide) Gas Sensor is used in gas detection equipment for detecting Carbon Dioxide gas in home, automotive or industrial settings. Features: High sensitivity to Carbon Dioxide gas Stable and long life Simple drive...

LEDs - those blinky things. A must have for power indication, pin status, opto-electronic sensors, and fun blinky displays. This is a very standard blue LED. The lens is 3mm in diameter, and is diffused. Features: 2.0-2.4 VDC forward...

This is a simple 5mm LED with an interesting array of applications. This UV LED can be used for counterfeit detection (bills, credit cards, documents, etc), sterilization, pesticide, black lights, sun burns, the list goes on. Please wear...

Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water) LCD display Temperature Range: -50 °C ~ +70°C Powered by 2 x LR44 button cell (included) Cable length:approx.80cm...

PVA (or PolyVinyl Alcohol) is widely used in traditional industries, such as the textile industry and papermaking industry. PVA is also used in a wide variety of coatings. PVA’s water solubility makes PVA filament particularly suitable...

These are very small rare earth magnets - 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...

DESCRIPTION This Aluminium 4WD Chassis is a simple yet versatile robot chassis designed specifically for students. Featuring a heavy duty aluminium chassis designed with large internal volume, numerous holes and mounting points,...

Every maker needs this 1×40 2.54 mm pitch header in their component drawers. If the typical black color bores you, we have these in a pack of 10 of red, yellow, white, green and black (2 pieces each). NOTE The headers come in a mix of...

The TCRT5000L Infrared Reflective Sensors are great for detecting lines and edges. They can also be used to for close range obstacle detection. These sensors transmit an IR infrared beam and then measure the reflection. They work best...

Tracker Sensor is designed for line following robot. It consists two parts - an IR emitting LED and an IR sensitive phototransistor. It can output digital signal to a microcontroller so the robot can reliably follow a black line on a...

This simple cable has so many uses! Plug the 9 volt battery clip onto a standard 9V battery and connect the other end to anything with a 5.5x2.1mm, center-positive barrel jack. Use this cable to battery-power any device that needs 9V and...

This chassis is intended to be a multifunctional base where you may use it as either a 4 wheel drive or even a 2 wheel drive. When using it as a 2WD, the ball-bearing provided can be used to support the body. Whereas there is no need to...