The VD1000P is a direct contact, capacitive type voltage detector for use on voltages from proximity to 99.9kV on distribution circuits and 999kV on Transmission conductors. The VD1000 indicates Line-to-Ground values. (U-2)Each unit has a five-position switch for the following functions:OFF Use this position for Storage and TransitP Non-Contact, Sensing Presence of Voltage from the Ground URD Direct Contact, Underground Primary (01.0 - 99.9)OH Direct Contact, Overhead Lines (01.0 – 99.9)OHT Direct Contact, Substation & Transmission Lines (001 – 999)This unit incorporates a self-test feature each time the selector switch is turned to another position displaying the battery voltage. A reading less than 07.0 indicates a low battery. Includes: 1kV – 999kV digital voltage detector with proximity test Hook probe Straight probe Universal/grip-all adapter Manual Case