Mains Polarity Tester Plug
Suggested Retail Price £16.99
Our Price £8.95
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Product DetailsSafety 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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