â·ÃÊͺ¶ÒÁÃÒ¤Ò The DV50 provides all of the benefits of a non-contact AC voltage detector with a convenient telescoping probe. DV50: Telescoping AC Voltage Detector 39" (1m) Non-Contact voltage detector (1000V AC) Features: Non-Contact Detection of AC Voltage from 6VAC to 1000VAC Telescoping probe extends to 36" (0.9m) with reach distance of 39" (1m) For use on 50/60Hz circuits Red LED light indicator and switch-controlled ON/OFF Audible beeper Sensitivity adjustment increases or reduces sensor trigger threshold AC DV50 Extech Multimeter Telescoping Voltage Detector