Socket-Tester
A socket tester is a portable electrical instrument used to test for correct operation and wiring standards on power outlet sockets. It is typically a hand-held instrument that either plugs directly into the socket with pins mounted on the tester or comes equipped with a short lead and plug. Depending on the sophistication of the socket tester, a range of status indications may be returned including disconnected phases, reversed phases, and, in the case of a top end instrument, earth loop impedance. Most testers display test results on an array of light emitting diodes (LEDs), and some also allow for an earth leakage test to be carried out with the push of a button. Socket testers are available for most common industrial and domestic voltages and pin configurations.
