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Elenco 21-881 Sound Reversing Car Kit. Find out how fun electronics and mechanics can be with this kit! The completed kit moves forward when it detects noise and reverses when it touches obstacles.

21-890 Line Tracking Robot Kit - Teaches the basics of electronics, sensory, autonomous robotic behaviors, and logic!

AK-510 Motion Detector Kit - Learn the basics of motion detector technology while building this motion detector kit that uses an infrared sensor.

This dynamic DT-100K Diode - Transistor Tester Project Kit allows the checking of transistors and diodes in circuit, identifies NPN and PNP transistors, checks all types small or large power, and identifies anode or cathode of diodes.

Nerve Tester Kit K-20. A great educational project kit! Once this K-20 Nerve Tester Kit has been assembled you can test yours and others ability to stay calm.

The K-23 Burglar Alarm Kit is an easy-to-build alarm control for your car, house, room or closet.

The K-24 Whooper Alarm Kit makes an excellent alarm device for the Combination Lock/Alarm Control. It can also be used independently as a sounder or siren. This is a great educational project!

Once you have completed assembling the K-26 Metal Detector Kit you can find money and old treasures. This is a great educational project kit.

Once assembled the K-44 Lie Detector will sound to tell you if someone are lying.

Cable Polarity Checker Kit MK-132: Check cables for continuity and identify individual wires. Ideal for speaker cable polarity checking. LED indication for open circuit, shorts and correct or wrong polarity. Push button operation with auto power off.

Velleman MK149 Love Tester Kit: You and others can check your love life! Enjoy the great fun at parties, among friends, etc...

WEASEL ROBOT OWI-991K : This is a Beginner Soldering Series robot that is great for robotic competitions, robotic workshops, after-school programs, special events, gifts, science enrichment camps, and classroom activities!

Ramsey Laser Trip Sensor Kit LTS1 Set up a security fence for over 500 yards of continuous coverage! Includes both Visible LED and Audible Alert trip indicators! 5 Amp external trigger relay output for custom applications! Runs on 9 to 18 VDC for easy

Metal Detector Kit 9904

9913 Lie Detector Kit

9918 Fish Caller Kit

Color Organ Kit One Channel / One Control SK-9922

9970 Nerve Tester Shocker Kit

K013 Mini Signal Injector

K031 Photo Electric Counter Kit