1. Comprehensive Testing: 3 in 1: Insulation resistance(IR), milliohm resistance and inductance; 2. Efficient and Durable: *Data hold, backlight, low voltage indication, auto power off; *Simple operation, rapid status evaluation, and a shockproof rubber body. 3. Application Areas: New energy vehicle repair, electrical installation, equipment maintenance, electronic manufacturing, power equipment installation, research, etc. 4. Non-destructive Fault Detection: Detect rotor coil winding issues without disassembling the motor. *Identify open/short circuits and poor contact in winding coils. *Detect inductance differences caused by loose or broken rotor coils. *Test insulation between motor coil windings, between windings and motor casing.