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AIOMEST Automotive Multimeter Engine Analyzer, Digital DMM Meter to Measure Car Dwell Angle, RPM Tach, Injection Pulse, AC/DC Amp Voltage Ohm True-RMS 6000 Count Multi Tester, AI-770K
Purchase options and add-ons
Brand | AIOMEST |
Power source | Battery Powered |
Style | Modern, Functional |
Colour | 770k Automotive Multimeter |
Min. Operating voltage | 0.6 Volts |
Upper temperature rating | 1E+3 Degrees Celsius |
Measurement type | Multimeter |
Manufacturer | AIOMEST |
About this item
- 🎯【PRO AUTO DIAGNOSTICS】AIMOEST engine analyzer AI-770K measure RPM tach (60-12000), pulse width (0.1-10ms), duty cycle (1.0-99.0%), and test dwell angle (0-90.0°) for 4, 5, 6, and 8 cylinder engines. Perfect for automotive professional mechanics and DIY car/vehicle enthusiasts.【Requires optional AI-705A Inductive Clamp for RPM measurement (NOT Included).】
- 🎯【VERSATILE MULTIMETER】The automotive dwell meter AI-770K has comprehensive electrical features to assist in electric troubleshooting, such as accurately measure DC voltage (0.01mV-1000V), AC volt (TRMS 0.01mV-750V), DC/AC current (0.1μA-20A), resistance ohm (0.1Ω-60MΩ), capacitance (1pF-60mF), and temperature (-4°F-1832°F). Includes diode test, continuity buzzer, and frequency testing.
- 🎯【SMART LCD DISPLAY】Features a 6000 count crystal clear LCD screen with auto-backlight sensor that adjusts to ambient light conditions. Includes auto-zero, auto-polarity, auto-range, and auto power-off after 15 minutes of inactivity. "OL" indicator for over-range and 3 readings/second for quick results.
- 🎯【ADVANCED SAFETY FEATURES】Non-contact AC voltage (NCV) detection, data hold function, Max/Min measurements, and PeakHold to capture AC voltage/current peaks. Low battery indicator ensures reliable operation.
- 🎯【ACCESSORIES & WARRANTY】Handheld DMM True RMS multimeter comes with test leads, temperature probe, portable ammeter/voltmeter carrying case and 365 days quality warranty. Built to withstand demanding automotive environments, making it an essential tool for any garage or workshop.
Product details
- Parcel Dimensions : 22.9 x 13 x 6.8 cm; 620 g
- Date First Available : July 28 2020
- Manufacturer : AIOMEST
- ASIN : B08DKSW2ZF
- Item model number : AI-770K
- 鶹 Rank: #134,232 in Automotive (See Top 100 in Automotive)
- #15 in Multimeters & Analyzers
- Customer Reviews:
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Safety and product resources
Safety documents
From the brand

Measurement Solution Provider
Since its establishment, AIOMEST has focused on product quality and is committed to providing consumers with high-quality products.
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Product Description

A must-have automotive multimeter for anyone who drives an old car
- Automotive testing of dwell angle for points-type ignitions on older cars
- As well as daily electric tests includes: AC/DC Volt, Amp, Ohm. Diode, Continuity,Temperature, etc
- Perform all standard tests for on the car or bench troubleshooting.
- Test electrical components for faulty wiring and voltage.
- Safely troubleshoot a variety of automotive, household and shop electrical circuits.
- Verify voltage on engine sensors, ignition, fuel systems and charging systems.



Packing List
- User Manual
- Test Leads
- Temperature Probe
- Continuity Buzzer
- Digital Automotive Multimeter AI-770K
- Diode Test
- Data Hold
- Max/Min Measure Modes
- Frequency
- Continuity Buzzer
- 6000 Counts TRMS
- Over-range Indicator
- Non-contact AC voltage (NCV) detection
AIOMEST AI-770K Digital Electric Multitester
Highly versatile DMM that performs standard and automotive electric tests
- Professional Multimeter for on-car and on-bench troubleshooting, including: tach, dwell, volts, ohms, amps and diode tests on both 6V and 12V systems.
- Perfect for testing starting and charging systems, ignition and fuel delivery systems, and helps locate faulty wiring and components.
- The extra-large, easy-to-read digital LCD display features an on-screen test leads connection reminder, automatic reverse polarity indication, and low battery indicator.
- RPM (Tach): 60-12000 RPM; Accuracy: ±2.5% of reading ± 10dgts
- PULSE WIDTH: 1.0 ~ 10.0ms; Accuracy: ±2.0% of reading ± 20dgts
- DUTY CYCLE: 1.0% ~ 99.0%; Accuracy: ±2.0% of reading ± 5 dgts
- DWELL ANGLE: 0-90.0 °; Accuracy: ±2.5% of reading ± 10 dgts
- DC Voltage: 0.01mV ~ 1000V;Accuracy: ±0.5% ~ 0.8% of reading ± 2 dgts
- AC Voltage(TRMS): 0.01mV ~ 750V;Accuracy: ±1.0% ~ 1.5% of reading ± 3 dgts
- AC/DC Current: 0.1μA ~ 20A; True RMS for AC Current Measurement
- Resistance: 0.1Ω ~ 60MΩ; Capacitance: 1pF ~ 60mF
AI-705A inductive pickup Clamp is required for rpm measurement. You can also add a AI-605A Current clamp test lead for noncontact current measurement
600V CAT IV 1000V CAT III rated, with protective rubber case for drop protection to ensure durable. Ideal for trouble-shooting car & household electrical problems: tach, dwell, volts, ohms, and diode tests on both 6V and 12V systems.
6000 counts high accuracy multimeter with Data Hold & PEAK Hold on peak MAX/ peak MIN. The meter can capture negative or positive peaks as fast as 1.28 millisecond in duration.
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AI-605A AC/DC Current Test Clamp
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AI-705A Inductive Pickup Clamp
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Customer Reviews |
3.2 out of 5 stars 10
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3.0 out of 5 stars 20
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Main Function | Measure AC DC Amp up to 600A (by clamp adapter) | Measure tach RPM for vehicle engine |