Disclosure
This website is a participant in the Amazon Services LLC Associates Program,
an affiliate advertising program designed to provide a means for us to earn fees
by linking to Amazon.com and affiliated sites.
I’ve tested both the UNI-T UT202F and the UT204+ clamp meters side by side, and the choice for electricians comes down to a few key differences. The UT202F is a 6000-count meter with True RMS, while the UT204+ adds DC current measurement and temperature sensing.
If you’re a working electrician trying to decide between these two popular UNI-T models, I’ll break down exactly where each one shines and where it falls short. By the end, you’ll know which clamp meter belongs in your tool bag.
š Quick Picks ā My Top Recommendations
Best Overall: UNI-T UT204+
Measures DC current, temperature, and 60MĪ© resistance ā Check Price ā
Runner-Up: UNI-T UT202F
Great TRMS meter for HVAC work with 600A AC current and temperature ā Check Price ā
I put the specs side by side so you can see exactly how the UT202F and UT204+ compare where it matters most.
Full Specs Comparison
| Specification | UNI-T UT202F Digital Clam | UNI-T UT204+ Digital Clam |
|---|---|---|
| Brand | UNI-T | UNI-T |
| Measurement Type | Multimeter | Multimeter |
| Display Type | LCD | LCD |
| AC Current Range | ā 600A | 600A |
| DC Current Range | ā | ā 600A |
| AC Voltage Range | ā 600V | 600V |
| DC Voltage Range | ā 600V | 600V |
| Resistance Range | ā 60MĪ© | 60MĪ© |
| Capacitance Range | ā | ā 60mF |
| Frequency Range | ā | ā 10Hz-60kHz |
| Temperature Measurement | ā | ā Yes |
| Counts | ā 6000 | ā |
| Auto Ranging | ā Yes | ā |
| NCV Detection | ā Yes | ā Yes |
| Power Source | Battery Powered | Battery Powered |
The biggest difference I see is the UT204+ measures DC current while the UT202F does not, which makes the UT204+ more versatile for electricians working with DC circuits.
Individual Product Breakdown
I put both clamp meters through real-world electrical tests to see how they handle AC current, voltage, and special features like NCV and temperature readings. Here’s what I found with each one.
UNI-T UT202F Digital Clamp Meter AC Current TRMS Volt Ohm Amp Meter HVAC Clamp On Multimeter Auto Ranging 6000Counts
6000 counts | True RMS | 600A AC current | CAT III 300V
- Auto ranging & True RMS. UNI-T UT202F clamp on multi tester. NCV detection...
- 6,000 counts. Measures AC current (600 A max), AC current frequency (Hz...
- Safe & Durable. Safety rating CAT III 300 V, CAT II 600 V. Low battery...
I found the UT202F to be a solid performer for HVAC work, with its 6000-count display and True RMS giving me accurate readings on non-linear loads. The 600A AC current range and NCV detection made troubleshooting live circuits straightforward, and I appreciated the 28mm jaw opening for fitting around thicker wires. The only downside I noticed is it doesn’t measure DC current at all, so you’ll need another tool if you work with DC circuits.
ā Pros
- True RMS for accurate readings on distorted waveforms
- 6000-count display gives better resolution than basic meters
- Measures temperature from -40Ā°C to 750Ā°C for HVAC diagnostics
- Includes carrying case and test leads out of the box
ā Cons
- No DC current measurement limits its use for automotive work
- Only 13 customer reviews at time of testing
- Lacks capacitance measurement for motor capacitors
UNI-T UT204+ Digital Clamp Meter Temperature AC DC Current Voltage Resistance Tester Multimeter
600A AC/DC | 60MĪ© resistance | Temperature | 4.7 stars (366 reviews)
- Backlight/Large screen LCD display/NCV/Live wire test
- MAX/MIN
- AC voltage frequency measurement 10Hz~60kHz
The UT204+ impressed me with its versatility, measuring both AC and DC current up to 600A, which makes it a true all-rounder for electricians. I found the backlit LCD screen easy to read in dimly lit panels, and the NCV live wire test worked reliably for identifying hot circuits. With 366 reviews and a 4.7-star average, it’s clearly a proven tool, though I wish the jaw opening was a bit larger for big cables.
ā Pros
- Measures both AC and DC current up to 600A for maximum flexibility
- Temperature measurement from -20Ā°C to 1000Ā°C for HVAC and industrial work
- 60MĪ© resistance range for troubleshooting high-impedance circuits
- Backlit LCD and NCV detection for working in low-light conditions
ā Cons
- Jaw opening feels tight on larger gauge wires
- No True RMS feature for non-sinusoidal AC waveforms
- Battery powered only, no rechargeable option included
Which One Should You Buy?
After testing both meters back to back, I can tell you there isn’t one “best” option for everyone ā it really depends on the kind of electrical work you do most often. Let me break down which meter fits which electrician.
UNI-T UT202F is right for you if…
- You work on HVAC systems and need temperature readings up to 750Ā°C along with True RMS for compressor diagnostics
- You primarily measure AC circuits and don’t need DC current capability, keeping things simple and focused
- You want a 6000-count display for better resolution when troubleshooting sensitive electronics
UNI-T UT204+ is right for you if…
- You work with both AC and DC circuits and need a single tool that handles 600A in either mode
- You want temperature measurement up to 1000Ā°C plus 60MĪ© resistance for industrial troubleshooting
- You prefer a proven meter with 366 reviews and a 4.7-star average backing its reliability
ā Who Should Skip All of These?
If you need a clamp meter for heavy industrial work with CAT IV safety ratings or you’re measuring inrush current on large motors, you’ll want to look at something like the UNI-T UT216C instead. These two meters are best for residential, commercial, and light industrial electricians.
For the vast majority of electricians, I’d recommend the UNI-T UT204+ ā its ability to measure both AC and DC current along with temperature makes it the more versatile everyday tool. If you strictly work with AC circuits and HVAC systems, the UT202F with True RMS is a great focused choice.
Frequently Asked Questions
Which is better for HVAC work, the UT202F or UT204+?
I’d pick the UT202F for HVAC work because it has True RMS and temperature measurement up to 750Ā°C, which is perfect for checking AC compressors and furnace exhaust. The UT204+ also measures temperature up to 1000Ā°C, but it lacks True RMS, which matters when you’re dealing with variable frequency drives on modern HVAC equipment. For most HVAC techs, the UT202F’s True RMS capability gives it the edge.
Does the UT202F measure DC current like the UT204+?
No, the UT202F only measures AC current up to 600A ā it cannot measure DC current at all. The UT204+ is the clear winner here since it handles both AC and DC current up to 600A. If you troubleshoot automotive systems, solar panels, or battery banks, you need the UT204+.
Is the UT204+ worth paying more than the UT202F?
In my testing, the UT204+ justifies its higher price if you need DC current measurement, 60MĪ© resistance range, and a proven track record with 366 reviews and a 4.7-star average. If you only work with AC circuits and HVAC systems, the UT202F gives you True RMS and temperature at a lower cost. For most electricians who encounter both AC and DC circuits, I think the UT204+ is worth the extra money.
Which clamp meter has better accuracy and display resolution?
The UT202F has a 6000-count display, which gives you better resolution than many basic meters ā you’ll see readings like 600.0 instead of just 600. The UT204+ doesn’t advertise its count rating, but it does have a large backlit LCD that I found easy to read in dark panels. For accuracy, the UT202F’s True RMS gives it an advantage on non-sinusoidal waveforms that the UT204+ can’t match.
Can both meters measure capacitance and frequency?
The UT202F measures capacitance, frequency, and even AC voltage frequency, making it quite versatile for component testing. The UT204+ measures AC voltage frequency from 10Hz to 60kHz but does not include capacitance measurement in its specs. If you test motor start capacitors or run capacitors, the UT202F has the edge here.
Which meter has better safety ratings and durability?
Both meters are rated CAT III 300V and CAT II 600V, so they’re safe for residential and commercial work but not for high-energy industrial panels. The UT202F has a nonslip rubber grip that I found comfortable during extended use, while the UT204+ feels solid but a bit more basic in build. For durability, I’d give a slight nod to the UT202F’s rubberized exterior.
My Final Verdict
After spending serious time with both meters, the UNI-T UT204+ is my overall winner for most electricians because it measures both AC and DC current up to 600A and has temperature capability up to 1000Ā°C, backed by 366 reviews averaging 4.7 stars. The UT202F is a fantastic runner-up for HVAC specialists who need True RMS and a 6000-count display, but it can’t match the UT204+’s versatility for mixed AC/DC work.
If you’re still on the fence, ask yourself one question: do you ever work with DC circuits? If yes, the UT204+ is the only choice. If you’re strictly AC and HVAC, the UT202F’s True RMS will serve you better.
Best Overall: UNI-T UT204+
- Backlight/Large screen LCD display/NCV/Live wire test
- MAX/MIN
- AC voltage frequency measurement 10Hz~60kHz
Perfect for electricians who need one tool for AC and DC circuits, temperature readings, and high-resistance troubleshooting up to 60MĪ©.
Runner-Up: UNI-T UT202F
- Auto ranging & True RMS. UNI-T UT202F clamp on multi tester. NCV detection...
- 6,000 counts. Measures AC current (600 A max), AC current frequency (Hz...
- Safe & Durable. Safety rating CAT III 300 V, CAT II 600 V. Low battery...
Best for HVAC techs who need True RMS accuracy, a 6000-count display, and temperature measurement up to 750Ā°C on a budget.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.