166838 - 

Volt-Stick PRO Selective AC Indicator
The Volt Stick PRO, is a pen style non contact AC voltage indicator for safely checking the presence of an AC voltage in cables, junction boxes etc. The patented forked tip design has unsurpassed selectivity. This is because the maximum sensitivity is between the two prongs of the fork. Outside the fork the sensitivity is low, so external interference fields have small effect.
Supplied With:
2 x AAA batteries and instructions.