Best Digital Multimeter Picks
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This roundup covers five digital multimeters from the listing data in one research file for a digital multimeter search. That file has no Kaiweets HT118A listing, so the title names the category instead of the model. Each figure below is copied from a listing as the seller states it and dated 11 October 2026. Where two figures in one listing do not match, both are shown.
Quick answer: for work on mains outlets and panels, check the category rating and the maximum voltage first. For household or automotive checks, a 4000 or 6000 count display with a clear range setting is the usual starting point. The Fluke 87V and the UNI-T UT161E are the two picks whose listings state a CAT III 1000 V rating.
The five picks at a glance
| Multimeter | Listed count figure | Safety rating (as listed) | Best fit |
|---|---|---|---|
| Fluke 87V Industrial (B0002YFD1K) | 6000 to 20,000, switchable | CAT III 1000 V, CAT IV 600 V | Industrial troubleshooting |
| UNI-T UT161E (B0B1CZBPX7) | 22,000 | CAT III 1000 V, CAT IV 600 V | Meter with PC data link |
| TESMEN TSM-599 (B0D5LSQL58) | 6000 | Not stated (CSA and ETL listed) | General use with NCV |
| DEASOMIYE T21D (B0B31YC3YD) | 6000 | Overvoltage category III 600 V | Auto-ranging for home and car |
| NJTY T3 (B0DM67L7N4) | 4000 | Not stated (UL 61010-1 listed) | Rechargeable, quick checks |
How we chose these five
We kept multimeters whose listing names the meter type, states a count figure and gives at least one voltage or safety figure. Every item comes from the listing data alone, and a missing rating is reported as missing rather than filled in. We did not check any of these meters in person.
- Count figure: the display count, as the listing states it, sets how finely a reading is shown.
- Safety rating: we report the category and voltage the listing gives. Two of the five listings state no category at all.
- Scope: the other seven listings in the file were not picked, mainly to keep the list to one type of meter.
1. Fluke 87V Industrial Digital Multimeter
The Fluke 87V is listed as an industrial digital multimeter for advanced troubleshooting, measuring up to 1000 V AC and DC. Its listing names a low-pass filter for accurate frequency reads on adjustable speed drives, and a peak capture function for intermittent signals. The listing states a switchable display resolution of 6000 to 20,000 counts and a CAT III 1000 V, CAT IV 600 V rating. It weighs 1.3 pounds, runs on alkaline cells and includes TL75 test leads, AC175 alligator clips and an 80BK temperature probe. The listing gives a 10 year warranty and an operating altitude of 2000 m. Checked 11 October 2026.
2. UNI-T UT161E Digital Multimeter
The UT161E is listed with 22,000 counts. It measures AC and DC voltage up to 1000 V and AC and DC current up to 20 A. The listing also gives resistance up to 220M, capacitance up to 220 mF, frequency up to 220 MHz and a duty cycle range of 0.1 to 99.9 percent, plus a transistor hFE test. Its safety line reads CAT III 1000 V and CAT IV 600 V. The package includes test leads, a USB cable, a Phillips screwdriver and a manual. The listing says a PC link needs a separate Bluetooth adapter, the UT-D07B, and it names a smartphone app for data. Checked 11 October 2026.
3. TESMEN TSM-599 Smart Digital Multimeter
The TSM-599 is listed as a 6000-count TRMS meter with a color LCD and an analog bar graph. An automatic mode covers DC and AC voltage, resistance and continuity without a manual range setting, and a manual mode covers the other functions. The listing names non-contact voltage and live wire detection, a thermocouple for temperature and a 10 A, 250 V fuse on the current input. It turns off after 15 minutes of inactivity. The listing names CSA and ETL as its certifications but gives no CAT category, so its safety rating is not stated. The package includes a storage bag, 4 AAA batteries and a manual. Checked 11 October 2026.
4. DEASOMIYE T21D Auto-Ranging Digital Multimeter
The T21D is listed as a 6000-count TRMS auto-ranging meter. Its listing names non-contact voltage testing and a live wire test, both with sound and light alarms. The listing gives an overvoltage category III 600 V standard and a double ceramic fuse for overload protection on all ranges. The meter weighs 300 g and measures 2.68 by 5.51 by 1.69 inches. It has a backlit display, data hold, a support stand, a flashlight and a non-slip orange silicone cover. The package lists 3 AAA batteries, a thermocouple and two safety tubes. The listing states a 30 day manufacturer guarantee. Checked 11 October 2026.
5. NJTY T3 Auto-Ranging Digital Multimeter
The NJTY T3 is listed with a 4000-count display for AC and DC voltage and resistance. It charges through a Type-C port, and the listing says that avoids disposable batteries. It adds non-contact voltage detection with live wire detection, a 3.2 inch color LCD, a low battery indicator, data hold and automatic shut-off. The listing cites UL 61010-1 and IEC 61010-2-030 and gives a 2 year warranty. It gives no CAT category. The package includes the meter, a Type-C cable and a six-country manual. It measures 6 by 3.4 by 1.5 inches. Checked 11 October 2026.
Worked example: how fine is a 600 V reading?
For example, take the 600 V setting. A count figure divides that setting into steps, so a 6000-count display such as the TESMEN or DEASOMIYE steps in about 0.1 V (600 divided by 6000). The 4000-count NJTY T3 steps in about 0.15 V (600 divided by 4000). These are simplified step sizes from the listed counts and setting, not accuracy figures, and none of the listings states how accurate its voltage reading is.
The Fluke 87V gives a second example. At 1000 V, its 6000-count mode steps in about 0.17 V (1000 divided by 6000), and its 20,000-count mode steps in 0.05 V (1000 divided by 20,000). A change smaller than about 0.17 V shows up only on the high-resolution setting.
What the listings do not say
None of the five listings gives an independent test result, so every figure above is the seller’s own statement. The TESMEN and NJTY listings give no CAT category, and neither says what the current inputs are rated for. Check the rating printed on the meter before a live test, and do not rely on the count figure alone.
Frequently asked questions
What does the count figure on a multimeter mean?
The count figure is the largest number the display can show, so a 6000-count meter can show smaller steps than a 4000-count meter. The listings give counts as the seller states them. Divide the range by the count to get a rough step size, as in the worked example above.
Which of these picks states a CAT III 1000 V rating?
The Fluke 87V and the UNI-T UT161E both state CAT III 1000 V and CAT IV 600 V in their listings. The DEASOMIYE T21D states an overvoltage category III 600 V standard. The TESMEN and NJTY listings give no CAT category.
Can one of these meters send data to a PC?
The UNI-T UT161E listing says it sends data over USB to a PC and needs a Bluetooth adapter, the UT-D07B, for a wireless PC link. The other four listings in this roundup do not mention PC data logging.
Which meter has the smallest listed count figure?
The NJTY T3 has the smallest listed count figure in this group, at 4000 counts. The Fluke 87V, TESMEN and DEASOMIYE list 6000 counts or more, and the UNI-T UT161E lists 22,000.
Do these meters measure current?
The UNI-T UT161E, the TESMEN TSM-599 and the DEASOMIYE T21D listings all state AC and DC current. The Fluke 87V listing names voltage and resistance and gives no current range. The NJTY T3 listing covers AC and DC voltage, resistance and continuity, and does not list current.
Conclusion
For a 1000 V industrial job, the Fluke 87V and the UNI-T UT161E are the picks whose listings state that rating. For a general household or car check, the TESMEN and DEASOMIYE meters give 6000 counts with non-contact testing. Read the category rating and the count figure before you buy, and check that the meter does what your work needs.
For more on choosing a meter, see best multimeter, best auto-ranging digital multimeter, and best hand-held digital multimeter.
Fluke 87V · UNI-T UT161E · TESMEN TSM-599 · DEASOMIYE T21D · NJTY T3
