Voltage Multimeters Compared
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A multimeter reads voltage along with other functions, and it is often what a buyer means when searching for a voltage tester. The research file for this keyword was built around the Wera name, but Wera does not appear in any of its twelve results, so the title has been changed to describe the file’s contents. This post compares the four multimeters in the file that state a voltage range or a voltage function. Figures were checked on 11 October 2026 and are shown as the sellers give them.
Quick answer: the ZMIWNIED FS899L lists the highest count figure of the four at 6000 counts, with true RMS and a non-contact voltage function. The TESMEN TM-510 lists 4000 counts and a non-contact check. The AstroAI and LJPXHHU listings are simpler meters with lower or unstated count figures. Compare the stated ranges, because none of the four is a Wera product.
The four multimeters at a glance
| Multimeter | Voltage stated | Counts | Non-contact check | Power or size |
|---|---|---|---|---|
| AstroAI 2000 Count (B01ISAMUA6) | DC up to 600 V; AC 200 V and 600 V | 2000 | Not stated | Two 1.5 V AAA batteries |
| LJPXHHU XL830L (B0CXM242J1) | AC and DC, no range in the listing text | Not stated | Not stated | 166 g |
| ZMIWNIED FS899L (B0GWL4KVZM) | AC and DC, auto-ranging, true RMS | 6000 | Yes (NCV) | USB-C rechargeable, 4.8 inch colour screen |
| TESMEN TM-510 (B0BLZ7GN2X) | AC 0.8 V to 600 V | 4000 | Yes, visual and audible alarm | 0.1 kg |
How we chose these four
We kept the four multimeters in the file that state a voltage range or function in the listing text. The four non-contact pens in the file are not multimeters, so they are not used here. The three automotive test lights are car-circuit tools, and the Maximum hi-pot tester is a withstand voltage tester, not a voltage presence tool. We did not test any of these meters, and nothing below reports personal use.
1. AstroAI Digital Multimeter Tester 2000 Counts
The listing states DC voltage up to 600 V, with DC ranges of 200 mV, 2 V, 20 V and 200 V as well. AC voltage has 200 V and 600 V ranges. The meter also reads DC current on 200 microamp, 200 milliamp and 10 amp ranges, and the 10 amp range is protected by a F10 A/250 V fuse. Its listing gives a CAT II 600 V and CAT III 300 V rating, and the spec sheet gives a sample speed of 3 times per second while a bullet says 2 times per second. Check the AstroAI 2000 Count on Amazon.
2. LJPXHHU Digital Multimeter XL830L
The listing says it measures AC and DC voltage, DC current, resistance, continuity, diodes and batteries. A 2.7 inch backlit LCD and data hold are listed, and the fold-out stand lets the meter stand upright. The listing says overload protection applies on all ranges. It does not state a voltage range or a count figure in the text used for this post, so those figures cannot be given from this data. It weighs 166 g. Check the LJPXHHU XL830L on Amazon.
3. ZMIWNIED FS899L Digital Multimeter
This meter is listed as a 6000 count true RMS multimeter with auto-ranging for AC and DC voltage. Its ratings are CAT III 1000 V and CAT IV 600 V, with dual ceramic fuses. The listing describes a 4.8 inch colour screen that it says stays readable in direct sunlight, and an NCV capacitance function. It charges over USB-C and comes with two alligator clips. The title is “2026 Upgraded FS899L”, so the listing reflects a newer version of the same model. Check the ZMIWNIED FS899L on Amazon.
4. TESMEN TM-510 Digital Multimeter
The TESMEN listing gives 4000 counts and an auto-ranging mode, with AC voltage from 0.8 V to 600 V at ±(1.2%+5). It states a true RMS frequency response of 40 Hz to 1 kHz. Its non-contact check sounds an alarm and shows a visual warning. The listing says the meter is CAT II 600 V, CE, UKCA and RoHS certified. It has data hold, auto shutdown, a low-battery indicator, a backlight and a flashlight, and weighs 0.1 kg. Check the TESMEN TM-510 on Amazon.
Worked example: how the count sets the step size
The count is the number of steps a meter can show on a range, so it sets how fine the readings are. Assume a 20 V range for the comparison, which is an assumed full-scale value and not a figure from these listings. On a 2000 count meter, each step is 0.01 V (20 divided by 2000). On the 4000 count TESMEN, each step is 0.005 V (20 divided by 4000). On the 6000 count ZMIWNIED, each step is about 0.0033 V (20 divided by 6000). The ZMIWNIED listing does not give its 20 V range in the text used here, so the 0.0033 V step is a calculation, not a stated figure.
What the listings do not say
None of the four listings gives an independent accuracy test. The LJPXHHU listing states no voltage range or count figure. The ZMIWNIED listing gives its safety categories but not its full ranges in the text used here, and the TESMEN and ZMIWNIED listings name DC voltage without a stated DC range.
Frequently asked questions
Which of these multimeters has the most counts?
The ZMIWNIED FS899L lists 6000 counts. The TESMEN lists 4000, and the AstroAI lists 2000. The LJPXHHU does not state a count figure in the text used here.
Does the ZMIWNIED check voltage without touching a wire?
Its listing says so. It describes a non-contact voltage function as part of the meter, alongside the NCV capacitance measurement.
Which of these meters reads current?
The AstroAI and LJPXHHU listings state DC current. The TESMEN listing covers voltage, resistance and continuity, and the ZMIWNIED listing names voltage and capacitance, with no current range in the text used here.
What do the safety ratings mean?
The listings give different categories. The ZMIWNIED lists CAT III 1000 V and CAT IV 600 V, the TESMEN lists CAT II 600 V, and the AstroAI lists CAT II 600 V and CAT III 300 V. The ratings are not interchangeable across meters, so use the one that matches your work.
Can these meters check a 12 V car battery?
The AstroAI lists DC ranges that include 20 V, which covers a 12 V battery. The TESMEN and ZMIWNIED listings name DC voltage but give no DC range in the text used here, so check the DC range before you buy for a battery test.
Conclusion
For the most counts and a non-contact check, the ZMIWNIED FS899L and the TESMEN TM-510 are the two listings to compare. The AstroAI is the simpler meter with a stated DC range and current functions. For more on multimeters, read best multimeter, best auto ranging digital multimeter, best hand held digital multimeter, testing AC voltage with a multimeter and best Cen-Tech digital multimeter.
AstroAI 2000 Count on Amazon · LJPXHHU XL830L on Amazon · ZMIWNIED FS899L on Amazon · TESMEN TM-510 on Amazon
