Detects 0-40kV Line to Ground (0-69kV Phase to Phase). A Proximity or Direct Contact on Overhead and Underground Systems. Easy to Read Analog Scales. Detects Voltage from the Ground on Bare Overhead Lines when Hand Held. Test Secondary Voltage on Bare or Insulated Cables. The Detector Indicates Line to Ground Values for Nominal or Induced Voltages. The 5 – Position Selector Switch is Calibrated for Height above Ground to Compensate for a Capacitive Coupling Effect. Shielded to Minimize Stray Field Interference.