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well built with quality control check, tested all socket throughout my house and perform very well. these polarity and ground checks are for safety and to boost performance on every appliance with correct direction, in my circumstance I use it mainly for enhancing my audio system performance.
Verified purchase: Yes | Condition: New
Brilliant, I was getting a tingle from my fridge when I had damp hands, plugged this in to the socket and it indicated that the socket had no earth, the fault was then easily found, earth wire had broke in the consumer box.
Verified purchase: Yes | Condition: New
Excellent device which does what it says in an easy and simple way to understand. Great design, good value
Verified purchase: Yes | Condition: New
excellent value does exactly what you want for a quick check
Verified purchase: Yes | Condition: New
All good work very well easy to use
Verified purchase: Yes | Condition: New
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