Megger 210415 15-kV Megohmmeter is a high-voltage, line operated instrument. It provides a continuously variable test voltage for highly sensitive insulation resistance measurements of all types of electrical equipment and power cable. It is designed to withstand harsh field conditions, and feature tough, impact-resistance casing, removable lids and adjustable carrying straps. For complete portability, there is ample room in each case to store cables and the instruction manual. The 15-kV Megohmmeter provides direct reading measurements up to 100,000 MΩ at 5 kV and up to 200,000 MΩ at 10 kV, with a multiplying factor for all other voltages up to 15 kV. The 210415 model also features an internal voltage stabilizer that may be activated for improved measurement under extreme field conditions. Separate on/off controls are provided for power and high voltage, and a red light indicates when high voltage is on.