W4 Mains Socket Tester Orange


SAVE -12.99

Availability: In Stock

Mains socket polarity tester (UK), indicates faults with LED lights.


Ideal for caravans/motorhomes. A quick and easy way to ensure electrical circuits are wired correctly, simply plug into a 13 amp socket and the tester will indicate with a series of lights if there are any faults.

Especially useful for checking for reverse polarity when touring on the continent

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