In addition to practising soldering skills, you can use these Whadda (Velleman) kits when camping or around the house. The kits vary in complexity and skill levels required so have a quick look to find the right challenge for you!
The stereo ultrasonic sound and bat detector lets you hear sonar that animals use to navigate, which is normally outside of the range of human hearing!
The super stereo ear kit amplifies quiet sounds that may otherwise be too quiet to hear!
This two-part infrared light barrier intrusion alarm will trigger when something interrupts an infrared light beam.