What instrument can be used to detect high power?
You do not use the high-power appliances can not be found, but if you are using, he is able to detect with a variety of instruments, it can check through the circuit branch to find the location of the use of electrical appliances, and then focus on inspection.
If you use it regularly, he can find your location unless you hide it somewhere else, unlike the wires in your room.
What you mean by high power should refer to high power appliances! Hide no use with electrical appliances, general equipment is not check out, there can only be used in a circuit according to which route to determine which road load increases. Usually, the current on the line can be measured on the line with a clamp type meter.