DM300AUTO — the multimeter made for serious automotive diagnostics ⚡ 💥 Power Probe’s newest release is packed with features techs need every day: ✅ True RMS, CAT III 1000V / CAT IV 600V ✅ Bright color display with adjustable brightness ✅ Auto AC/DC voltage detection — no more mode mix-ups ✅ 0.1 Ω to 40 MΩ measurement range ✅ Loud continuity buzzer diode test (even lights LEDs) ✅ Dual Hertz modes for frequency & duty cycle ✅ Two ammeter modes: inline current fuse current detection (yes, measure