The BESANTEK BSTHVD22 Non-Contact High Voltage Detector, 240V - 275kV, 8 Settings is designed to detect the presence of high voltage without physical contact, and can be used with most hot sticks. This model features 8 settings from 240V to 275kV along with 3 LEDs visible from any angle and audible tones to alert to the presence of high voltage.