Photoresistor, 16Kohm to 500Kohm

How do smart devices, such as your cell phone or video game controller, know how to respond to color, light, touch or other external conditions? It's all about the sensors! With this kit, you can build & test your own electronic "sensing" devices.

Insulated 15" wire leads to quickly connect electrical items.

Explore circuits with a 400 Point Solderless Plug-In Breadboard! Study series and parallel circuits and the function of different electrical components.

MOSFET N-Channel transistor. TO-220. 60 volt and 16 amp.

Explore circuits with a breadboard! Create a parallel or series circuit without soldering or using alligator clips.

Regulate the voltage in an electric circuit with this potentiometer.

This basic diffuse type red LED (light emitting diode) is 5 mm in diameter and can be used instead of a mini light bulb in experiments.

Measure DC/AC voltage, DC current and resistance using this 19-function digital pocket multimeter.

This battery holder is made of black plastic and holds two AAA batteries.

Use this economical piezo-electric buzzer in experiments that require a doorbell or buzzer.