W4 Mains Tester

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W4 Mains Tester

W4 Mains Tester.
An essential for electrical safety in caravans and boats which are wired for mains use.

Smiply plug this into a 13amp socket to check neutral connections, earth connections, reversal of live/earth connections or non-connection of live or neutral.

Especially important when touring on the continent, where reversed polarity may be encountered
Price: £9.99


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W4 Mains Tester.


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