GW Instek GPT-15012 High-Voltage Electrical Safety Analyzer (DC / IR)Up for sale is a premium-grade GW Instek GPT-15012 Electrical Safety Analyzer. This high-precision workstation is specifically designed for demanding high-voltage insulation tests on components like energy storage systems, electric vehicle (EV) batteries, photovoltaic systems, high-voltage relays, and heavy-duty cabling.