On 15 Nov 2003 00:22:39 -0800, (dave L)
wrote:

This last tool has two functions: (a) it shows if the
terminal in contact is live; (b) what the voltage is. It has a
reading of 12-36-55-110-220v and illuminates the value below what the
actual voltage is. It works by the user holding the non-contact end
to complete the circuit a la the neon screwdriver.


I am glad you posted this as I have one of these cheap tools and it
exhibits the same characteristics, checking some metal light switches
(previous owner installed) it did at least make me realise that it
wasn't earthed so it has paid for itself and I shall be fixing that
this afternoon ....

C