Automotive Multimeter Digital 770K RPM Dwell AC/DC Current/Voltage Tester

PR-770K — Automotive Diagnostic Digital MultimeterThe PR-770K is a professional 12-function auto-ranging automotive diagnostic multimeter designed for vehicle electrical system testing and troubleshooting. Whether you're a professional mechanic, HVAC technician, or DIY enthusiast, this versatile tool delivers accurate measurements for a wide range of applications.What You Can MeasureAC/DC Voltage: Up to 1000 V DC / 750 V AC, 10 MΩ input impedance, true RMS for AC.AC/DC Current: Up to 20 A (30 sec max), 600 mA on μA/mA ranges, with fuse protection.Resistance: 600 Ω to 60 MΩ, with audible continuity and diode test.Capacitance: 9.999 nF to 60.00 mF.Frequency/Duty Cycle/Pulse Width: 5 Hz to 9.999 MHz, 1%–99% duty cycle, 1–10 ms pulse width.Temperature: -20°C to 1000°C (-4°F to 1832°F) with a K-type thermocouple.RPM Tachometer: 60–9000 RPM (x1) and 600–12000 RPM (x10) for 4-stroke, 2-stroke, and DIS systems.Dwell Angle: 0–90° (4-cyl), 0–72° (5-cyl), 0–60° (6-cyl), 0–45° (8-cyl).Key Features12 Functions in One Tool — Combines voltage, current, resistance, capacitance, frequency, duty cycle, pulse width, temperature, RPM, dwell, continuity, and diode testing.Automotive Diagnostic Focus — RPM tachometer with inductive pickup for 4/2-stroke and DIS ignition. Dwell angle for 4/5/6/8 cylinder engines. Pulse width for fuel injector diagnostics.Advanced Measurement Functions — Auto-ranging for quick operation. Data Hold freezes readings. Peak Hold captures transients as fast as 1.28ms. Max/Min records extremes.Non-Contact Voltage Detection — Built-in NCV sensor detects live AC voltage without contact. Green LED for voltage presence, red LED + audible alarm for live voltage ≥90V AC rms.User-Friendly Design — Large 6000-count backlit LCD. Auto power-off after 15 minutes. Overload protection on all ranges. CAT III 1000V safety rated. Durable bi-compound case.ApplicationsAutomotive diagnostics, engine tuning, HVAC system maintenance, industrial electrical troubleshooting, home electrical testing, educational laboratories.What's in the Box770K multimeter unit, test leads, alligator clips, K-type thermocouple, inductance pickup (optional), 9V battery, user manual.

• Automotive Multimeter：Professional automotive multimeter with 12 functions for vehicle diagnostics. Measures AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, pulse width, and temperature. Auto-ranging with 6000-count LCD display for precise readings.
• RPM & Dwell Mete：Built-in RPM tachometer measures 4/2-stroke and DIS ignition systems (60-9000 RPM, 600-12000 x10 RPM). Dwell angle testing for 4/5/6/8 cylinder engines. Ideal for tuning and troubleshooting ignition systems.（Inductive Clamp for RPM measurement is NOT included）
• AC/DC Current Tester & NCV：Measures AC/DC current up to 20A with fuse protection (0.8A/500V and 20A/500V fuses). μA and mA ranges for precise low-current measurements. Optional 600A clamp adapter for high-current testing. Built-in NCV detects live AC voltage without contact.
• Data Hold & Peak Hold：Press HOLD to freeze any reading on the large backlit LCD. PEAK captures AC voltage or current transients as fast as 1.28 milliseconds. MAX/MIN continuously tracks and displays the highest and lowest values during testing.
• Multi-Function Diagnostic Tool：Perfect for automotive repair, HVAC, electrical troubleshooting, and industrial maintenance. Includes test leads, alligator clips, thermocouple, and inductance pickup. Auto power-off after 15 minutes. CAT III 1000V safety rated.