Detail Testpen AC 100-500 Volt Vander - 3mm x 70mm
Testpen AC 100-500 Volt Vander - 3mm x 70mm
Instruction for use This voltage indicator is suitable for testing AC voltages from up to 500 V against earth. The metal part on top of the indicator must be touched to operate it and the earthing position of the user largerly determines whether it lights up or not.
Note : Failure to loght up therefore does not indicate with cetainty that no voltage is present!