W4 Universal Mains Hook-up Testing Kit

All you need to test the site supply at source both in the UK and Europe. Especially useful for testing for polarity reversal. Use as follows - UK 3-pin Socket - Mains Tester only. European standard 3-pin Socket - Trailing Socket with Mains Tester. Continental 2-pin Socket (Schuko)- Continental Adaptor and Trailing Socket with Mains Tester. The components can also be used separately.