Capacitor Testing Multimeters: 6 Picks Compared

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This page covers multimeters whose listings name a capacitance function, which is the tool a capacitor test usually calls for. Six of the twelve results in the research set name capacitance in their listing data. The other six do not, so they are left out. Each figure below is taken from the listing, checked on 11 October 2026, and shown as the seller states it.

Quick answer: for capacitance, look for a listed range that covers the value you need to read. The AstroAI clamp meter lists its lowest range at 2 nF and its highest at 2 mF, and the UNI-T UT161E lists capacitance up to 220 mF. None of the six listings says SMD, surface-mount or small-part, so check the probe and the lowest listed range before you order.

The six capacitance meters at a glance

Meter	Capacitance (as listed)	Counts (as listed)	Weight or size (as listed)	Other listed functions
AstroAI clamp meter (B0DB23PPHL)	2 nF to 2 mF, accuracy listed as ±(4.0%+5)	2000	Approx. 203 g; 8.46 x 4.53 x 1.77 inches	AC/DC voltage, AC current, resistance, continuity, NCV
DEASOMIYE T21D (B0B31YC3YD)	Listed in bullets, no range	6000	300 g; 2.68 x 5.51 x 1.69 inches	True RMS, temperature, NCV, duty cycle
Lscsdf FS899L (B0FR9BY1K3)	Listed in bullets, no range	6000	Not listed; 5.98 x 2.87 x 0.79 inches	Resistance, temperature, NCV, diode, continuity
TESMEN TSM-599 (B0D5LSQL58)	Listed in manual mode, no range	6000	Not listed	Hz%, temperature, NCV, live wire
Proster T28B (B0CQR9F26L)	Listed in bullets, no range	6000	380 g; 7.68 x 3.62 x 2.05 inches	20 amps AC/DC current, temperature, NCV, transistor
UNI-T UT161E (B0B1CZBPX7)	Up to 220 mF	22,000 (bullet)	1.5 pounds	Up to 1000 V AC/DC, 20 amps, frequency, USB data

How we chose these six

We kept each result whose listing names capacitance as a measurement. The AstroAI result is a clamp meter that also reads capacitance, and the rest are multimeters. No listing says whether it measures a part on a circuit board. Nothing on this page comes from personal use.

1. AstroAI Digital Clamp Meter Multimeter

This is the only listing that gives a capacitance range in full: 2nF, 20nF, 200nF, 2μF, 20μF, 200μF and 2mF, with accuracy listed as ±(4.0%+5). The title gives 2000 counts, and the specifications show a 3½-digit display. The listing states AC/DC voltage, AC current, resistance, continuity, live-wire testing and non-contact voltage detection, plus a continuity buzzer and a flashlight. It is rated CAT III 600V and takes two 1.5V AAA batteries, which are included. The listing says it cannot test DC current.

Check the AstroAI clamp meter on Amazon

2. DEASOMIYE T21D Auto-Ranging Digital Multimeter

The title gives 6000 counts and a TRUE RMS reading. The bullets list capacitance among its functions, along with temperature, duty cycle, non-contact voltage, live-wire and battery tests. The listing states CAT III 600V, a double ceramic fuse and a thermocouple in the box. It gives an item weight of 300 g and dimensions of 2.68 x 5.51 x 1.69 inches. The listing names three AAA batteries, and it does not give a capacitance range.

Check the DEASOMIYE T21D on Amazon

3. Lscsdf FS899L Smart Auto Ranging Multimeter

The title and bullets give 6000 counts, with capacitance, resistance, NCV, temperature, diode and continuity measurement. The listing describes a 4.8-inch color screen with a backlight and a flashlight. It takes a built-in rechargeable battery of 200 mA that charges from a micro USB cable included in the box. The listing gives no weight, no voltage range and no capacitance range, so those points cannot be compared with the other five.

Check the Lscsdf FS899L on Amazon

4. TESMEN TSM-599 Smart Digital Multimeter

The listing describes two modes. In auto mode it reads AC/DC voltage, resistance and continuity without a range setting. In manual mode it reads AC/DC current, diode, capacitance, Hz%, temperature, NCV and live wire. The title gives TRMS and 6000 counts. The bullets state a 10A/250V fuse, an insulated silicone casing, and an auto-off after 15 minutes of inactivity. The box holds 4 AAA batteries, a thermocouple, two test leads and a storage bag. No weight is listed.

Check the TESMEN TSM-599 on Amazon

5. Proster T28B TRMS Multimeter

The title gives 6000 counts and a 20A current range, and the bullets list capacitance, frequency, duty ratio, temperature, NCV, diode, transistor and continuity. The listing describes a magnetic back and a fold-out kickstand for hands-free use. The bullets give CAT III 600V and CAT II 1000V, two spare fuses and four AAA batteries. The item weight is 380 g and the dimensions 7.68 x 3.62 x 2.05 inches. The specification field lists CE and RoHS, while a bullet names CE and UL, so the certifications need checking on the product page.

Check the Proster T28B on Amazon

6. UNI-T UT161E Digital Multimeter

The listing gives the widest capacitance figure of the six: up to 220 mF. A bullet gives 22,000 counts, and the other bullets give AC/DC voltage up to 1000 V, current up to 20 amps, resistance up to 220M, frequency up to 220 MHz and a duty-cycle range of 0.1% to 99.9%. The listing says it is CAT III 1000 V and CAT IV 600 V certified. The item weight is 1.5 pounds. The listing names a USB cable for data transfer to a PC, a Bluetooth adapter (UT-D07B) for PC use, and iDMM app compatibility.

Check the UNI-T UT161E on Amazon

Worked example: will a small value read?

Take a capacitor marked 100 pF, which is 0.1 nF. The AstroAI clamp’s lowest listed range is 2 nF, which is 2000 pF, so this value sits 1,900 pF below the lowest range the listing states. The listing does not say what the meter shows below its range, so do not assume a reading.

Now take a 100 µF part. The AstroAI’s 200μF range covers it, and its top range of 2 mF is 2,000 µF, so the top range is 20 times that value. The UNI-T’s listed ceiling of 220 mF is 220,000 µF, which is 2,200 times the 100 µF part. A high ceiling says nothing about the bottom end, so check the lowest listed range for the values you need.

What the listings do not say

• No listing says SMD, surface-mount or small-part, so none of these meters is described as suited to that work.
• Four of the six give capacitance without a range: the DEASOMIYE, Lscsdf, TESMEN and Proster listings.
• Only the AstroAI listing gives an accuracy figure for capacitance. The others state none.
• Two listings, Lscsdf and TESMEN, give no weight.

Frequently asked questions

Does any of these listings mention SMD parts?

No. None of the six listings says SMD, surface-mount or small-part, so the listing data does not support using any of them for SMD work without checking the probe and the range yourself.

Which listing gives the widest capacitance figure?

The UNI-T UT161E lists capacitance up to 220 mF. The AstroAI clamp lists a range from 2 nF to 2 mF. The other four list capacitance without a range.

Why do the counts differ between listings?

The AstroAI clamp lists 2000 counts and the UNI-T lists 22,000 counts in a bullet. The other four list 6000 counts.

Which of these listings give a weight?

Four of the six give a weight. The AstroAI clamp is approximately 203 g, the DEASOMIYE is 300 g, the Proster is 380 g, and the UNI-T is 1.5 pounds. The Lscsdf and TESMEN listings give no weight.

Can the listings tell me how a meter behaves inside a circuit?

No. None of the six listings says whether a capacitance reading is valid with the part still connected to a circuit. Check the product manual and the circuit before you rely on a reading.

Conclusion

For a capacitance reading, the AstroAI clamp is the only listing that gives a full range, and the UNI-T gives the highest ceiling. The other four list capacitance without a range, so check the lowest listed range against the values you need before you order. None of the six says it suits SMD parts, so confirm that point on the product page.

For related reading, see best capacitance tester, best capacitor tester, and best test capacitor with digital multimeter.

AstroAI clamp meter · DEASOMIYE T21D · Lscsdf FS899L · TESMEN TSM-599 · Proster T28B · UNI-T UT161E