Mains Polarity Tester Plug

Mains Polarity Tester Plug Click to enlarge

Code: M56

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Suggested Retail Price £16.99

Our Price £9.50

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Product Details
Safety device checks the 240 volt system in the caravan is working correctly, can also be used for household electric systems.

3 LED indicators indicate correct function or wiring problems. Also detects reversed polarity.

Vital for single-pole protected mains systems when touring abroad, where reverse-polarity mains hookups are common. The tester indicates reverse polarity allowing you to swap over the live & neutral wires in your extension cable to ensure you and your family are adequately protected in the event of an electrical fault.

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