Klein Tools NCVT2P Dual Range, Non-Contact Voltage Tester, 12-1000V AC, Visual and Audible Indicators, Auto Power Off

Lo he probado dos veces y va como la seda

it works.

Works very well. I want to give it 4* because it is costly however it works so well and is very handy that I still have to give it 5*.

Excellent

Klein Tools are an American Brand akin to Fluke in the UK - A good start. Amazon sold and despatched - Best and most reliable way of buying from Amazon - Another plus point IMO. Not the cheapest as so many Chinese copies out there at half the price but, again IMHO this is WELL WORTH the extra. It arrived next day via Prime (in basic Amazon packaging but very sturdy moulded plastic covering from the manufacturer). It works really well, good level of sensitivity differentiating easily where cables are close together. Worked straight out of the 'box' having inserted the AAA batteries and hasn't missed a beat so far. It has an auto switch off to conserve the batteries which is so useful. My previous Maplin tester had a small torch built into the end which was actually useless and, as I don't work in the dark, hardly something I miss. So far definately so good. It also seems pretty robust and Klein even claim it should survive a a drop of a couple of metres. All in all, a nice usefull piece of kit at a fair price. Edit: Don't know what Amazon have done to the picture resolution, the instruction sheet which gave detailed info of it's capabilities had a resolution of 4677 x 3307 when I posted it - ah well !