Extech DV23Go to Product Support
Use the Extech DV23 to quickly check for the presence of live wires before performing any electrical testing. Suitable for outlets or against wire insulation testing, this AC Voltage Detector can be used for non-contact detection of AC Voltage from 50 V to 600 V (50 Hz/60 Hz). Red LED indicates the presence of voltage. Comes with two AAA batteries.