DC : 1V–1000V (±0.5% accuracy). Resistance & Continuity : 0–2kΩ (±0.8% accuracy) + <50Ω audible buzzer. WapoRich Digital Insulation Tester – 250V/500V/1000V DC | 2000MΩ Range | CAT IV 750V Safety. Data Hold & Backlit LCD : Freeze readings or work in darkness (10s auto-off).
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