"Every French campsite is different. You need to test for reverse polarity. The Kewtech Kewcheck 103 is ideal. Fast response and you can hear from outside whether there is a fault and then go in and check the LEDs. Would not go camping in France without one."
"Replace old plug in socket tester with this and immediately appreciated the difference - this unit has an audible alarm which is a great help when checking or confirming which circuit the socket is wired from, saving my legs and my sanity."
"I've just purchased one of these as I have lost my old socket and see somewhere on-site. It's a great piece of kit that will fit comfortably within your toolkit and aids in the quick identification of most common electrical problems located at socket outlet points."
"A great product, the main thing I like about it is it omits a tone when the power is on. Imagine you are at the consumer unit working out which ring to switch off, this device makes it quick and easy to find the right one. I used to have one of these which I purchased from a DIY store. It was about the same price, but did not have the tone. Recommended."
"Great little handy tool for the tool box. Has an audible tone to indicate power at the socket comes in useful when isolating the circuit. Don't suppose it will be used much but indicated the fault straight away on the circuit which it was bought for and will always come in handy. Bit more expensive than the others but I don't mind paying a little extra for the quality."