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Easy to build, only 2 wires to connect (connect after ignition). Uses multi colour 3mm LED... green: battery OK, Slow pulsing (green): battery OK or charging, red: battery voltage is low, red blink... CAT# MK-189
$9.95 each
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The Basics Lite: 14 Exciting Labs --- eTron Circuit Labs. 28 page booklet. Includes a solderless breadboard and parts to complete 14 educational electronics labs. CAT# KT-95
$17.95 each
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Large, two digit counter assembly. Advances one digit at a time, from 0 to 99 each time button is pushed (ideally to be used with any of our SPST normally-open momentary pushbuttons). Each digit is... CAT# CTR-20
$2.50 each
10 to 79    $2.25 each
80 or more    $2.00 each
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Features big sound from a small unit. Low distortion. Stereo 3.5mm jack input. Volume adjust complete with attractive knob. Slide on/off switch. Blue indicator led. 2 x 5Wrms (10% THD @ 4ohm / supp... CAT# MK-190
$14.95 each
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Great foundation for a 4-wheel drive robotic vehicle. Four, independent DC gear driven motors, each with 2.75" diameter x 1" rubber tires on hard plastic wheels. 2-tier 0.2" thick acrylic chass... CAT# CC-18
$19.95 each
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The Basics: 40 Exciting Lab --- eTron Circuit Labs. An immersive, hands-on curriculum of fun and illustrative electronics projects that teaches the fundamentals of electronics. Designed to be STEM... CAT# KT-40
$24.95 each
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Velleman # K4001. Small amplifier constructed around a TDA2003 IC, capable of delivering 4 Watts RMS at 4 Ohms. Music power: 7 W @ 4 ohms. RMS output: 3.5 Watts @ 4 Ohms / 2 Watts @ 8 Ohms. Frequen... CAT# MK-4001
$19.95 each
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Velleman # MK111. For intermittent operation of circuits and equipment. Use for blinking light control, slide projector control etc. Pulse time adjustable between 0.5 and 5 seconds. Pause time adju... CAT# MK-111
$9.95 each
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Two potentiometers adjust the flash rate of two LEDs. 9V operation. Battery not included. Note: Kits cannot be returned or exchanged once assembly has begun. CAT# MK-1021
$4.95 each
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OWI KIT 631. No battery - no motor - air powered DIY science kit. A pump-up bar with a pressure meter is built into the car for easy operation. This meter measures the volume of compressed air. Th... CAT# OWI-631
$27.95 each
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Simple do-it-yourself kit provides hours of fun. The aim of the game is to use the 4 pushbuttons to repeat a randomly generated pattern shown on the 4 LEDs. The pattern is played both visually and ... CAT# MK-112
$9.95 each
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Owikit# OWI-MSK684. CAPTAIN ROAM-E-O is an all-terrain solar vehicle, equipped with 6-Wheel mechanical suspension and 4-wheel drive system. Ideal for a do-it-yourself science fair, after-school, o... CAT# MSK-684
$19.95 each
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Velleman # K8004. Ideal for the accurate control of DC motors, lighting levels and small heaters as well as other applications. The circuit converts DC voltage into a series of pulses, the duration... CAT# MK-804
$28.95 each
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Digital Theory by ETron Circuit Labs is electronic education curriculum featuring 35 exciting labs. STEM (Science, Technology, Engineering, Math) educational compliant. Digital Theory picks up wher... CAT# KT-35
$41.95 each
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Drive your friends (or enemies) crazy. Automatically comes on when it gets dark. Adjustable chirp rate, light sensitivity and tone. 9V operation. Battery not included. Note: Kits cannot be retur... CAT# MK-104
$8.95 each
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Owikit# OWI-891. Fun and easy-to-assemble robotic kit! A child can bring this EM4 educational motorized robot kit to life in one of its four exciting modes: 6-leg walking Cricket, motorized transm... CAT# OWI-891
$20.95 each
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Velleman Kits # KNS7. Fun with gears and motors. Small 3 Vdc motor, metal bracket and axles, and an assortment of small plastic gears and collars to produce a gear train of various ratios. Note: ... CAT# GR-84
$11.95 each
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Announce visitors, warn against burglars, set boundaries, for science projects, with audible (85dB) and visible (LED) alert. Range: 3.3ft to 13ft. Power supply: transmitter: 9V DC / 50mA max. Recei... CAT# MK-120
$10.75 each
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The easy way to check your IR remote for proper operation. Simple operation : point the remote at the sensor and push any button. 4 flashing LEDs indicate remote operation. Power supply: 9V battery... CAT# MK-137
4 Available
$7.50 each
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Build this variable speed led chaser. 10 leds flash sequentially at whatever speed you set them for. Easy to build kit includes pc board, parts and instructions. Ideal for special lighting effects,... CAT# AEC
$6.95 each
10 or more    $6.50 each
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Two L.E.D.'s flash in unison when a 9 volt battery is attached. This kit includes a p.c. board, all the parts and instructions to make a simple flasher circuit. A quick and easy project for anyone ... CAT# LEDKIT
$2.50 each
100 or more    $2.25 each
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Very cool smart tracking robot car kit. Once assembled it will zip along a 15mm wide black line drawn on the ground. Designed to help kids or electronic enthusiasts learn about soldering and simple... CAT# KT-203
$13.50 each
New Item!
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Operates at safe voltage level. Makes lamps flash to the rhythm of the music. Usable for halogen bulbs. Optically isolated speaker input. Adjustable sensitivity. Can be used in the car, if the lamp... CAT# MK-114
$13.95 each
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Velleman# K7102. Ideal for locating metal pipes and objects in walls or ceilings. An LED indicates if a metal object is in the vicinity. If an audible signal is desired, space is provided for a buz... CAT# MK-7102
$18.00 each
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These ultra-small 3mm blue led pilot lights fit everywhere and run from almost any power source. Application ideas: Pilot light, staircase lighting, guide lighting, orientation lighting, etc. Kit c... CAT# MK-196
$5.95 each
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5 red LEDs. Incorporated microphone. Adjustable sensitivity. Power supply: 3V type CR2032 battery (not included). Note: Kits cannot be returned or exchanged once assembly has begun. CAT# MK-115
$8.95 each
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Velleman # K2633. Control up to four high-power circuits from a low power drive circuit. Four 3 Amp / 240 Vac, S.P.D.T. relays. Quick and easy to build. LED status indicators. 3" x 1.7." Power supp... CAT# MK-2633
$21.95 each
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Velleman MK197. Assemble this little kit to make a unique LED ball that flashes in the dark. Use your imagination and customize it to suit any holiday decorations from Christmas ornaments to Hallow... CAT# MK-197
$8.95 each
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Owikit# OWI-535. Easy to build and requires no soldering, OWI has made robotic arm technology more affordable without compromising quality. Using wired control box, command gripper to open and clo... CAT# OWI-535
$64.95 each
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Owikit# OWI-MSK681. Great little solar powered racing car kit for kids ages 8 and up. Easy and fast to assemble, no batteries required. Kids learn how gear mechanisms work and how green energy wor... CAT# MSK-681
$11.95 each
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Velleman# MK-127. Bug-shaped miniature robot. Driven by two miniature motors, its photocell sensors seek light. Stops in total darkness. LED eyes indicate driving direction. 3.93" x 2.36." Operates... CAT# MK-127
$14.95 each
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Signal output: sine wave, triangle, square wave and integrator (selectable through jumper). Signal frequency: about 1 KHz (fixed). Output level: adjustable from 0 to 100mVrms (LEVEL potentiometer).... CAT# MK-105
$10.95 each
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The SparkFun Inventor's Kit is a great way to get started with programming and hardware interaction with the Arduino programming language. The kit includes everything you need to complete five over... CAT# SFA-40
$99.95 each
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Push the button to start spinning action. Spinning speed gradually decreases, finally it stops and one LED remains lit. Auto power-off. Low power consumption. Power supply: 9V battery (not included... CAT# MK-152
$7.95 each
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Generates sound of a vintage steam engine. Adjustable 'speed' and volume. Great for model railroads, radio plays, stage, as gadget. With 'steam whistle'-push button. Specifications: · pow... CAT# MK-134
$15.95 each
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Miniature traffic light as used on four-way junctions. Realistic operation with adjustable delay. 12 LEDs. Great for model railroads, exhibitions, and toys. Low power consumption: 15mA. Power suppl... CAT# MK-131
$10.95 each
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This kit was developed as a pre-module for a number of audio applications where the input signal is too weak. Applications as a microphone pre-amplifier or for level correction. Compact design. Low... CAT# MK-1803
$12.85 each
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Velleman # MK-171. Make your voice sound like a robot. Add vibrato effect. Use pitch buttons to make your voice higher or lower. Built-in microphone and power amplifier with volume control - just a... CAT# MK-171
$16.80 each
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Buzzer sounds when water is detected. Water sensor can be placed at a distance by cutting the board and using wires to connect the sensor. 9V operation. Battery not included. Note: Kits cannot b... CAT# MK-108
34 Available
$7.95 each
Web Only!
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