🚨 Stay Alert, Stay Secure!
The Velleman MiniKits MK120 IR Light Barrier is a versatile security solution designed to warn against intruders, set boundaries, and enhance science projects. It features an audible and visible alert system, includes a 9V battery holder and adapter jack, and is equipped with an easy-to-use on/off switch.
J**O
Soldering problem.
I loved this kit. This is the 2nd purchase of this item. On both purchases some of the round places you solder came off the board. I would recommend using a lower heat on this board to help prevent it from separating from the board. Some troubleshooting may be required for this reason. Besides that it worked fine. I enjoyed putting it together with this exception. And it made my soldering look bad. Over all it was worth the purchase.
J**R
Freaked out the cat
It was pretty cool. I basically just wanted to get more practice with soldering, but once I made it, I thought it would be funny to see how the cats reacted. I placed it near a doorway they usually go through. They freaked out at first, but eventually figured out what was making the noise, and then started stepping over the invisible line. LOL.
A**S
Works great, runs down battery quickly.
Once it is all assembled, It works great! It goes though batteries pretty quickly but just don't leave in on for a few hours and it will work great!
K**R
It's Okay...for a toy.
Works fine for a toy but could not work in a real enviroment. Battery life is VERY short. Works for a demonstration but for sustaineduse it is not suited.
G**S
Completely Useless kits
Totally useless bought two, neither worked - and I am perfectly competent to assemble PCB's. A Schematic should have been provided so that fault finding could have been accomplished.
W**W
Five Stars
OK!
R**R
Assembled 2 of the kits. Signals worked but buzzer would not operate. Very frustrating
I have a lot of experience with Velleman kits and can usually make them work. The light barrier kits (I assembled 2) would not activate the buzzer. the red LED turned on as expected but the buzzer would not work.
K**D
Fun Project. My students love invisible beams and LOUD buzzers.
I purchased this kit to demonstrate different soldering kits to my middle school students. It assembles easily and quickly. I know some students have taken an interest in making electronics from kits.
M**6
Good kit for the a first-timer
My first electronic kit, and it was straight forward to make. Buzzer much louder than expected! Clear instructions and a straightforward layout.
D**D
Great for learning soldering
Great for anyone looking to practice their soldering skills of for students getting into electronics. I ordered 2 of these however one did not work once completed
A**R
Five Stars
Great
A**1
Five Stars
Cured the bug in the first version!
M**L
Great kit to get you started
Fantastic kit to get you started in electronics and a great price
Trustpilot
1 day ago
2 weeks ago