Professional Socket Tester
- Earth loop impendance tester
- Test of 30mA RCD's - With Push to trip button
- "Self Check" Function with Tri-Colour LED's with audible indication
- Tough, smooth-contoured construction
- Save time - Leave the socket in place with the audible tone when at switchboard
- No batteries required!
- Audible tone indication gives clear indication of good socket or problem socket