DIY enthusiasts can use the 'Metal Detector Kit' to search for electrical cables or water pipes in the wall. The metal detector can be assembled even with little soldering experience, as the circuit board is already pre-assembled. The remaining components are quickly connected. With a few standard household materials such as a yogurt pot, adhesive tape and glue, the metal detector is ready for use. The sensitivity of the device can be adjusted using the control knob. Light-emitting diodes allow conclusions to be drawn about the type of metal detected.