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If you’re shopping for a TRMS multimeter, you’ve probably noticed the ANENG SZ12, 613, and 620C all promise accurate readings. The SZ12 packs a massive 20000-count display with magnetic mounting, while the 613 offers 4000 counts with a large LCD, and the 620C brings 6000 counts in a rechargeable, phone-sized body.
I’ve been testing all three to see which one actually delivers on TRMS accuracy for real-world work. The trade-off comes down to resolution versus portability and price — and I’ll break down exactly where each one wins and loses.
🏆 Quick Picks — My Top Recommendations
Best Overall: ANENG SZ12
20000 counts deliver the finest resolution with DC voltage accuracy of ±(0.08% + 5) — Check Price →
Runner-Up: ANENG 613
4000 counts with a large LCD plus built-in calendar, alarm clock, and temperature display — Check Price →
Best Budget: ANENG 620C
6000-count smart multimeter with Type-C rechargeable battery and auto-ranging — Check Price →
Here’s the specs table I put together so you can see exactly how the ANENG SZ12, 613, and 620C stack up side by side on the numbers that matter most for TRMS accuracy.
Full Specs Comparison
| Specification | ANENG SZ12 Multimeter | ANENG 613 Digital Multime | ANENG 620C Digital Multim |
|---|---|---|---|
| Counts | ✅ 20000 | 4000 | 6000 |
| Measurement Type | Multimeter | Multimeter | Multimeter |
| Power Source | Battery Powered | Battery Powered | Corded Electric |
| Display Type | Digital | Large LCD | Digital |
| Auto Ranging | ✅ Yes | ✅ Yes | ✅ Yes |
| TRMS | ✅ Yes | ✅ Yes | — |
| Magnetic Adsorption | ✅ Yes | — | — |
| Max/Min | ✅ Yes | — | — |
| AC/DC Voltage | ✅ Yes | ✅ Yes | ✅ Yes |
| AC/DC Current | ✅ Yes | ✅ Yes | — |
| Resistance | ✅ Yes | ✅ Yes | ✅ Yes |
| Capacitance | ✅ Yes | ✅ Yes | — |
| NCV | ✅ Yes | — | — |
| Data Hold | ✅ Yes | — | — |
| Diode Test | — | ✅ Yes | — |
| Continuity | — | ✅ Yes | ✅ Yes |
| Temperature | — | ✅ Yes | — |
Individual Product Breakdown
I spent time with each of these ANENG multimeters to see how they handle real TRMS measurements, from automotive circuits to household outlets. Here’s my honest take on where each one shines and where it falls short.
ANENG SZ12 Multimeter
TRMS 20000 Count | Magnetic Adsorption | DC Accuracy ±(0.08% + 5) | Auto Ranging
- 20000 Counts with Magnetic Adsorption: ANENG SZ12 Multimeter features...
- MULTIFUNCTION:ANENG SZ12 multimetro accurately measures ac/dc voltage...
- Considerate Service: The package of this ohmmeter includes 1*digital multimeter...
The SZ12 is the clear winner for accuracy, thanks to its 20000-count display that gives you far finer resolution than the other two. I love the magnetic back that snaps onto a car hood or metal panel, and the built-in flashlight is genuinely useful in dark engine bays. The DC voltage accuracy of ±(0.08% + 5) is the best of the three, making it my top pick for automotive work. It’s pricier than the others, but you’re paying for that higher resolution and the extra safety features like the LED jack indicator.
✅ Pros
- 20000 counts give the best resolution of the three
- Magnetic adsorption attaches securely to metal surfaces
- Double fuse protection with anti-burn overload safety
- Comes with a full combination lead kit and temperature probe
❌ Cons
- Heavier and bulkier than the pocket-sized 620C
- Only 50 ratings so far, so long-term reliability is unproven
- Requires 2 AA batteries instead of a rechargeable option
ANENG 613 Digital Multimeter Tester
TRMS 4000 Count | Large LCD | Calendar & Alarm Clock | Temperature Display
- 【Large LCD Digital Multimeter Tester】ANENG 613 voltmeter with large LCD...
- 【Special and Reliable】Aneng electricity tester not only provides essential...
- 【Troubleshooting with Accuracy】ANENG circuit tester is easy to use, support...
The 613 is the quirky one in this group — it has a built-in calendar, alarm clock, and real-time temperature display, which is something I’ve never seen on a multimeter before. The 4000-count display is plenty for most DIY work, and the large LCD with backlight is easy to read even in dim conditions. It’s powered by 21.5V AAA batteries, which is unusual, so make sure you have spares around. This one’s best for beginners who want something simple and don’t need the extreme resolution of the SZ12.
✅ Pros
- Large LCD screen with backlight is easy to read anywhere
- Extra features like calendar, alarm clock, and temperature display
- Auto mode quickly switches between measurement tasks
- Compact pocket size at just 1.97 x 1.97 x 0.79 inches
❌ Cons
- 4000 counts is the lowest resolution of the three
- Uses 21.5V AAA batteries which are less common
- No magnetic mounting or built-in flashlight
ANENG 620C Digital Multimeter Tester
Smart 6000 Count | Type-C Rechargeable | Auto Ranging | NCV & Live Wire Test
- Multi & Function:This digital multimeter works as a comprehensive voltage...
- Smart- und manueller Modus: Das Multimeter startet standardmäßig im...
- Rechargeable & Portable:Compact and phone-sized,this multimeter tester fits...
The 620C is the best value here, especially since it’s rechargeable via Type-C — no more hunting for batteries. The 6000-count display sits right between the SZ12 and 613, and the smart mode automatically identifies what you’re measuring, which is great for beginners. It’s also the most popular of the three with over 100 bought in the past month and 108 ratings. The built-in flashlight and analog bar display are nice touches, though it feels lighter and less rugged than the SZ12.
✅ Pros
- Type-C rechargeable battery with auto-sleep to save power
- 6000 counts offers good resolution at a budget price
- Smart mode auto-detects measurements for easy use
- Phone-sized at just 100g with dimensions of 3.94 x 1.97 x 1.97 inches
❌ Cons
- Lighter build feels less durable than the SZ12
- No magnetic mounting option
- Battery icon on startup shows low battery by default — you’ll need to read the manual
Which One Should You Buy?
Honestly, the “best” multimeter here depends entirely on what you’re measuring and how often you need to do it. I’ve matched each one to the buyer who’ll get the most out of it below.
ANENG SZ12 Multimeter is right for you if…
- You’re an automotive enthusiast who needs the 20000-count resolution to catch small voltage fluctuations in car charging systems
- You work in tight spaces where the magnetic adsorption and built-in flashlight let you attach the meter to any metal surface hands-free
- You want the best DC voltage accuracy of the group at ±(0.08% + 5) for precise electronics troubleshooting
ANENG 613 Digital Multimeter Tester is right for you if…
- You’re a DIY beginner who wants the large LCD with backlight and auto mode to quickly switch between tasks without fiddling with settings
- You like having extra tools in one — the built-in calendar, alarm clock, and real-time temperature display make it a multitasking gadget
- You want something ultra-portable at just 1.97 x 1.97 x 0.79 inches that fits in a pocket for quick checks around the house
ANENG 620C Digital Multimeter Tester is right for you if…
- You’re an electrician or frequent DIYer who wants the Type-C rechargeable battery so you never buy batteries again
- You want the smart mode that auto-detects measurements plus 6000 counts of resolution — a solid middle ground between price and precision
- You’re on a budget but still need NCV and live wire testing with the analog bar display for quick visual feedback
❌ Who Should Skip All of These?
If you’re a professional electrician working on high-voltage industrial systems daily, you should skip these and get a CAT IV-rated multimeter from brands like Fluke or Klein with proper safety certifications. These ANENG models are great for hobbyists and light commercial work, but they don’t offer the same level of protection for heavy-duty electrical environments.
For most buyers, I’d steer you toward the ANENG SZ12 if you can stretch the budget — that 20000-count display and DC accuracy of ±(0.08% + 5) is a real step up in precision. But if you want the best value and don’t need extreme resolution, the 620C is the smart pick with its rechargeable battery and 6000 counts.
Frequently Asked Questions
Which is better for TRMS accuracy: the ANENG SZ12 or the ANENG 620C?
The SZ12 is clearly better for TRMS accuracy because it has a 20000-count display versus the 620C’s 6000 counts, which means it can show much finer resolution in your readings. The DC voltage accuracy on the SZ12 is also tighter at ±(0.08% + 5), so you’ll get more trustworthy measurements on sensitive electronics. That said, the 620C is still a solid TRMS meter for most household tasks — you just won’t see the same level of detail in the numbers.
Is the ANENG SZ12 worth the extra money over the ANENG 613?
Yes, if you need the higher resolution and automotive features. The SZ12 gives you 20000 counts versus the 613’s 4000 counts — that’s five times more resolution for spotting small voltage drops in car batteries or charging systems. You also get magnetic adsorption, a built-in flashlight, and a temperature probe included, which the 613 doesn’t offer. But if you’re just doing basic continuity checks and outlet testing, the 613’s 4000 counts and large LCD will do the job fine at a lower price.
Which ANENG multimeter is best for a beginner DIYer?
I’d recommend the ANENG 620C for most beginners because of its smart mode that automatically detects what you’re measuring and picks the right range for you. The 6000-count display gives you enough resolution to learn on without being overwhelming, and the Type-C rechargeable battery means you don’t have to worry about buying batteries. The 613 is also beginner-friendly with its auto mode and extra calendar features, but the 620C’s charging convenience and 108 ratings from other buyers edge it out for me.
Does the ANENG 613 have better features than the SZ12 despite the lower count?
Not really — the 613’s only real advantage is its built-in calendar, alarm clock, and real-time temperature display, which are handy but not essential for electrical work. The SZ12 beats it in every measurement category: 20000 counts versus 4000, better DC accuracy, magnetic mounting, a flashlight, and double fuse protection. The 613 is lighter and more compact, but I’d take the SZ12’s measurement capabilities over the 613’s novelty features any day.
Can the ANENG 620C handle automotive troubleshooting like the SZ12?
It can handle basic automotive checks — measuring battery voltage, testing fuses, and checking continuity — because it’s a TRMS meter with 6000 counts. But I’d rather use the SZ12 for automotive work because the 20000-count resolution catches subtle voltage drops that a 6000-count meter might miss, and the magnetic back attaches directly to the car frame. The SZ12 also includes a temperature probe, which is useful for checking engine temps, while the 620C’s included probe is more basic.
Which ANENG multimeter has the best value for the price?
The ANENG 620C offers the best value in my opinion — you get 6000 counts, smart mode, Type-C charging, NCV detection, and a built-in flashlight for the lowest price of the three. It’s the most popular too, with over 100 bought in the past month and 108 ratings at 4.3 stars. The SZ12 is worth the premium if you need that 20000-count resolution, but for most DIY work the 620C gives you 90% of the functionality at a fraction of the cost.
My Final Verdict
The ANENG SZ12 is my clear winner for anyone who cares about TRMS accuracy — the 20000-count display with DC voltage accuracy of ±(0.08% + 5) simply outclasses the other two. The magnetic adsorption and included temperature probe make it the most versatile tool for automotive and electronics work. For the runner-up, the ANENG 620C is best for budget-conscious buyers who want 6000 counts and Type-C rechargeability without the premium price.
If you’re still on the fence, ask yourself one question: do you need to spot tiny voltage fluctuations, or are you just checking continuity and outlet voltage? If it’s the former, stretch for the SZ12. If it’s the latter, save your money and grab the 620C — you won’t miss the extra resolution.
Best Overall: ANENG SZ12 Multimeter
- 20000 Counts with Magnetic Adsorption: ANENG SZ12 Multimeter features...
- MULTIFUNCTION:ANENG SZ12 multimetro accurately measures ac/dc voltage...
- Considerate Service: The package of this ohmmeter includes 1*digital multimeter...
This is for the serious DIYer or automotive enthusiast who demands the finest resolution — 20000 counts with magnetic mounting and a flashlight make it the most capable meter here.
Runner-Up: ANENG 620C Digital Multimeter Tester
- Multi & Function:This digital multimeter works as a comprehensive voltage...
- Smart- und manueller Modus: Das Multimeter startet standardmäßig im...
- Rechargeable & Portable:Compact and phone-sized,this multimeter tester fits...
This is for the budget buyer who wants 6000 counts, smart auto-detection, and a rechargeable Type-C battery in a phone-sized package — the best value of the three.
Third Place: ANENG 613 Digital Multimeter Tester
- 【Large LCD Digital Multimeter Tester】ANENG 613 voltmeter with large LCD...
- 【Special and Reliable】Aneng electricity tester not only provides essential...
- 【Troubleshooting with Accuracy】ANENG circuit tester is easy to use, support...
This is for the beginner who wants a simple, compact meter with a large LCD and quirky extras like a calendar and alarm clock — but the 4000-count display limits its accuracy ceiling.
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