Thanks to the Circuit Breaker Finder/Socket Tester (MS5902) it is possible to check which fuse protects the socket without disconnecting the power supply.
The transmitting element can work in two modes: as a signal generator for the receiver and as a socket tester.

MS6818 is ideal for tracing cables in walls/underground. This device can easily locate fuses and breakers on circuits or find interruptions and short-circuits in cables, for example in floor heating systems. It also easily detects live cables and traces metallic pipes.

The kit includes a transmitter and a reciever.