• AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery
  • AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery
  • AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery
  • AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery
  • AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery
  • AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery
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AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery

★★★★★4.8

$25.99

Counts:

Model:

Technical Details

AstroAI combines innovation with strict quality control. Our technical details highlight advanced features. Trust in our excellence for top performance.

Package Dimensions6.1 x 4.37 x 2.09 inches
Item Weight7.72 ounces
ModelM4K0R
Measurement TypeMultimeter, Ohmmeter, Voltmeter
External Testing CertificationCAT III 600V
Power Source Type Battery Powered
Batteries2 AAA batteries required. (included)

Which is the Best for You?

AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery

Price

$25.99

What's Included
Maximum Display4000 Counts
AC/DC VoltageAC/DC 600v
AC/DC Current
Resistance/Continuity
Range SelectionAuto
Capacitance/FrequencyOnly Capacitance
InrushX
NCV Detection
VFD / LoZX
TemperatureX
AstroAI CM4K0R Digital Clamp Meter 4000 Counts, Measuring AC/DC Voltage, Amp, Resistance, Capacitance, Frequency, Continuity, Live Wire Test, etc.

Price

$45.99

What's Included
Maximum Display4000 Counts
AC/DC VoltageAC/DC 600v
AC/DC CurrentAC/DC 400A
Resistance/Continuity
Range SelectionAuto
Capacitance/Frequency
InrushX
NCV Detection
VFD / LoZX
TemperatureX
AstroAI DMM with Non-Contact Voltage Function, Measures Voltage, Current, Amp, Resistance, Capacitance and 1.5V/9V/12V Battery, Model DM130B

Price

$21.99

What's Included
Maximum Display4000
AC/DC Voltage
AC/DC Current
Resistance/Continuity
Range SelectionManual and Auto
Capacitance/FrequencyOnly Capacitance
Inrush-
NCV Detection
VFD / LoZ-
TemperatureX
AstroAI Digital Multimeter TRMS 4000 Counts, Measures Voltage, Current, Resistance, Continuity, Frequency, Tests Diodes, Temperature, Red, DT132A

Price

$25.99

What's Included
Maximum Display4000
AC/DC Voltage
AC/DC Current
Resistance/Continuity
Range SelectionManual and Auto
Capacitance/Frequency
Inrush-
NCV Detection-
VFD / LoZ-
Temperature
AstroAI M6K0R Digital Multimeter TRMS 6000 Counts, Measuring AC/DC Voltage, Current, Capacitance, Resistance, Frequency, Temperature, Continuity Diodes with NCV

Price

$37.99

What's Included
Maximum Display6000 Counts
AC/DC Voltage
AC/DC Current
Resistance/Continuity
Range Selection-
Capacitance/Frequency
Inrush-
NCV Detection
VFD / LoZ-
Temperature

Frequently Asked Questions

?

Range for capacitance

The range of the capacitance is 4nF/40nF/400nF/4μF/40μF/400μF/4mF ±(4.0%+5).

?

Does this unit come with batteries installed?

Yes, the batteries are already installed in the multimeter.

?

Is the included user manual in English?

Yes, the multimeter comes with a user manual in English. There is a PDF user manual in English, and the manual is located under the product guide and documentation on the product listing.

Customer Reviews

4.8

★★★★★

156 Reviews

  • 5

    130

  • 4

    20

  • 3

    6

  • 2

    0

  • 1

    0

M

Mauser

★★★★★

Seems Impressive for the Price

Initial testing good. While not the cheapest option available, it is still very low cost and seems like a much more professional tool than the lower-priced options I tried. This unit has a relatively compact size, but still has a decent heftiness feel to it - I do not mean that it is heavy, just that it does not feel like a 50 cent plastic toy.

It comes with a decent 17 page manual written in actual English instead of some Chinese gibberish.

Another notable feature is that the test leads come with tip covers that actually have real value. Instead of just completely covering the tips so that they have to be removed to use the meter at all, these leave the very ends of the tips exposed so that the leads can be used for many basic measurements with the covers left in place (such as a quick battery test). More than just convenience, these have the added value that if you need to measure something in a tight position where you are worried that the normally long and fully exposed tip might short out on something beside you intended measurement point, the lead cover proves extra protection. I'm not sure why most modern test leads come with full plastic covers anyway; what possible protection does a bare metal probe need in storage?

The accuracy specs (from the manual) seem to be acceptable for a tool in this price range: DCV +-0.5%, ACV +-1.0%, Current +-1.5%, Resistance +-1.5%. While not a scientific instrument, it is very functional around the house and shop.

May-01,2026

j

jonicat

★★★★★

Great meter cheap price

It does the trick

Apr-30,2026

G

Greg Amundson

★★★★★

This voltmeter

Works well, solid and compact. I recommend it.

Apr-29,2026

M

M-Power

★★★★★

Great multi meter that does not use 9v battery

For the price, this multi meter works great. I especially liked the fact that it doesn't require 9v battery.
Continuity test with audible sound is a great plus in my tool box.
I also have brand name multi meter, but I use this more often due to smaller size with all the feature I need.

Apr-28,2026

J

James Arrant

★★★★★

Great value

Great addition to my electrical toolbox. Functions for days and laid out logically. Sample rate is fast. Unit is light weight, and sturdy.

Apr-23,2026

A

Andy Hawkins

★★★★★

Great tool everyone needs one

GREAT value for the price so I bought 2

Apr-21,2026

M

Miguel Frontado

★★★★★

Very nice multimeter

Very nice multimeter, good functionality, good material, etc.

Apr-19,2026

S

Scot Gingerich

★★★★★

Good inexpensive meter

Pretty good meter for the money. Easy to use, has all the features and capabilities needed for typical electrical measurements.

Apr-15,2026

AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery

AstroAI M4KOR Digital Multimeter Tester TRMS 4000 Counts, Measure Voltage, Current, Resistance, Diodes, Continuity, Capacitance with NCV and 1.5V/9V/12V Battery

$25.99