Socket testers

Ermenrich Zing ST30 Socket Tester

The Ermenrich Zing ST30 Socket Tester is designed to test whether all of the sockets are properly wired and to check the voltage. The tester must be plugged directly into a socket, and the LED’s flashing will indicate various electrical faults: no ground/no neutral, live/neutral reverse, or live/ground reverse. In addition, the specific color code that appears on the tester screen signals the corr

Ermenrich Zing ST40 Socket Tester

The Ermenrich Zing ST40 Socket Tester with a Euro plug and a dedicated button for testing the performance of the RCD (residual current device). The tester is inserted into a socket and provides light indication with three LEDs. The light codes are directly on the body of the device, and there are seven in total: Everything is in or-der; no ground; no neutral; missing phase; phase/ground reversed;