Kewtech Kewcheck 105 Mains Wiring Tester

• Tri-color LEDs with audible indication and 'self-check' feature
• Error-free indication of socket status
• LEDs indicate 18 wiring conditions including: COrrect, L-E reverse, L-N reverse, faulty N, E or L and missing L.

Easy to use, just plug in, switch on and read the wiring conditions.