Please recommend a non-contact voltage detector pen that I can use to check for live cables in UK domestic situation, ie 240 volts AC, AND possibly low voltage DC, eg 12 volt car or lower voltage battery operated items? Am I expecting too much to detect 240 V AC and 12 V DC?
Will they detect a cable in a wall?
What should I look out for in the specs?
Will they detect a cable in a wall?
What should I look out for in the specs?