Best Digital Multimeters and Clamp Meters: 7 Picks Compared
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Searches for a CL320 meter return a mixed set of listings. The research file for this topic holds 12 results, and they include a tape measure, energy meters for RV and home service, a dirty-electricity meter, and several electrical testers. None of the listings names a CL320 model, so this page does not match the model number to any product. It compares the seven listings that state a multimeter or clamp meter function, using only the figures each listing states. The listing data was checked between 2026-10-11 and 2026-10-13.
Quick answer
For handheld work on outlets, batteries and small circuits, the listings with the widest stated voltage ratings are the ZMIWNIED FS899L (CAT III 1000 V) and the AstroAI 2000-count meter (DC and AC voltage to 600 V). For current, the clamp listings are the relevant group. The Klein Tools CL120 states AC current up to 400 amps, and the FNIRSI DMC-100 states AC and DC current up to 600 A. Pick by the quantity you measure and the voltage category your work needs, then confirm the figure on the live product page before ordering.
Comparison at a glance
| Pick | Stated type | Figure the listing states | Checked |
|---|---|---|---|
| AstroAI AM33D | Handheld digital multimeter, manual range | DC voltage to 600 V; AC voltage to 600 V; 2000 counts | 2026-10-11 |
| Klein Tools CL120 | Auto-ranging clamp meter | AC current up to 400 amps (title) | 2026-10-11 |
| LJPXHHU XL830L | Handheld digital multimeter | 2000 counts (title); no voltage range in the specification fields | 2026-10-11 |
| Fieldpiece SC260 | Compact clamp multimeter, True RMS | AC voltage and AC current readings; no numeric range in the specification fields | 2026-10-11 |
| FNIRSI DMC-100 | True RMS clamp meter | AC and DC current up to 600 A (title); 9999 counts (title) and 10000 counts (bullet) | 2026-10-11 |
| ZMIWNIED FS899L | True RMS digital multimeter | CAT III 1000 V; CAT IV 600 V; 6000 counts (title) | 2026-10-11 |
| ANENG SZ301 | Digital multimeter with case | DC voltage 200 mV to 600 V; DC current 2 mA to 10 A; resistance to 200 MΩ | 2026-10-11 |
AstroAI AM33D Digital Multimeter
The listing title describes a 2000-count digital multimeter that measures voltage, current, resistance, continuity and diode. The specification table states DC voltage ranges of 200 mV, 2 V, 20 V, 200 V and 600 V, with accuracy of plus or minus 0.5 percent plus 3 digits. It states AC voltage ranges of 200 V and 600 V at plus or minus 0.8 percent plus 5 digits, and a DC current range that tops out at 10 A.
Two power figures do not agree. The Power field states 2 x 1.5 V AAA batteries, while the Included Components field lists a 9V 6F22 battery along with two test leads and a user manual. The listing also states fuse ratings of 250 mA at 250 V and 10 A at 250 V, a weight of 0.15 kg, and a 3 year warranty by AstroAI. The environmental rating is listed as CAT II 600 V and CAT III 300 V.
View the AstroAI AM33D listing on Amazon
Klein Tools CL120 Clamp Meter
The listing title names an auto-ranging digital clamp meter with a 400 amp AC rating. The bullets state that it measures AC current and non-contact voltage through the clamp jaw, while AC and DC voltage, resistance and continuity are measured through test leads. The bullets also mention a backlit LCD for low-light readings.
The specification fields list the measurement types as ammeter, voltmeter and ohmmeter, with a battery power source. The listing gives dimensions of 8.45 x 3.51 x 1.51 inches and a weight of 9.76 ounces. It names the warranty as see manufacturer website, so the coverage details have to come from the manufacturer. The listing does not state a DC current range, which matters if your work includes DC current.
View the Klein Tools CL120 listing on Amazon
LJPXHHU XL830L Digital Multimeter
The title describes a 2000-count electrical test meter that comes with leads and a backlit LCD. It names AC and DC voltage, DC current, resistance, continuity, diodes and batteries as measured functions. The specification fields give the model as XL830L, a weight of 166 g, and dimensions of 5.51 x 2.56 x 1.18 inches.
The Included Components field reads only multimter, which is a spelling error in the listing, and it does not list the leads that the title mentions. The bullets describe a 2.7 inch backlit LCD, a data hold function, a fold-out stand and a removable rubber cover. The listing gives no numeric voltage or current range in its specification fields, so the range has to be checked on the product page.
View the LJPXHHU XL830L listing on Amazon
Fieldpiece SC260 Clamp Multimeter
The listing names the SC260 as a compact HVACR clamp multimeter with True RMS, temperature, capacitance and backlight. The bullets say it reads VAC and AAC with True RMS, non-contact voltage, continuity warning and a diode test. It also states that the meter selects capacitance or resistance mode automatically. The specification fields give the model as SC260, dimensions of 3.5 x 3 x 9.1 inches, and a yellow color.
The weight field reads 0.27 g. That figure does not fit a handheld clamp meter with the stated dimensions, so treat it as a listing error to confirm with the seller. The listing does not give a numeric voltage or current range in its fields. Use the product page for the range before comparing it with the other clamp meters here.
View the Fieldpiece SC260 listing on Amazon
FNIRSI DMC-100 TRMS Clamp Meter
The title states a 9999-count TRMS clamp meter that measures AC and DC current up to 600 A. A bullet states 10000 counts for the same meter. The listing gives both numbers and does not say which one describes the display resolution, so note the conflict before you compare resolution across listings.
The bullets describe a 2-inch TFT color display with 10 brightness levels, real-time curve recording that stores 8 sets of data, and a rechargeable 1500 mAh lithium battery with Type-C charging. The included components field lists a clamp meter, two multimeter pens and a temperature probe. The specification fields give dimensions of 7.7 x 2.91 x 1.14 inches and a weight of 6.72 ounces, and they state UL 61010-1 and CE marking.
View the FNIRSI DMC-100 listing on Amazon
ZMIWNIED FS899L Digital Multimeter
The title describes a 2026 upgraded FS899L with 6000 counts, True RMS, auto-ranging AC and DC voltage, NCV, capacitance, USB-C recharging and a color screen. The bullets state a CAT III 1000 V rating and a CAT IV 600 V rating, dual ceramic fuses, and a 4.8-inch color screen. They also list NCV detection and a worklight.
The specification fields are sparse. They give a measurement type, a safety rating of Cat.iii 1000v and Cat.iv 600v, and compatible devices described as appliances, electronics and vehicles. The listing gives no weight or dimensions. Its included components field reads only instruction manual, while the title mentions two alligator clips, so confirm the accessories before buying.
View the ZMIWNIED FS899L listing on Amazon
ANENG SZ301 Digital Multimeter
The title names a digital multimeter with a case, DC and AC voltmeter, and ohm, volt and amp functions. The specification table states DC voltage from 200 mV to 600 V at plus or minus 1 percent plus 5 digits, and AC voltage from 200 mV to 600 V at plus or minus 2.0 percent plus 10 digits. It states DC current from 2 mA to 10 A, resistance up to 200 MΩ, and capacitance from 0 nF to 2 mF.
Other fields give a maximum count of 2000, an LED screen, a weight of 155 g, and a battery test for 12V, 9V and 7.5V cells. The function list names diode, on-off detection, data retention, live detection and NCV sensing. The listing gives no CAT safety category in its specification fields, so check the safety rating on the product page if your work involves mains voltage.
How we chose
The seven picks were kept because each listing states a multimeter or clamp meter function. Five other results were set aside because their stated function is not a multimeter or clamp meter: a tape measure, three kWh energy meters for RV and home service, and a dirty-electricity meter. Those listings were not ranked here.
Within the seven, the comparison uses equivalent fields only. Voltage ranges are compared with voltage ranges, and current ranges with current ranges. Where a field is missing from a listing, this page says so rather than filling the gap from another product.
Worked example: what a stated voltage accuracy means at 230 V
The AstroAI listing states DC voltage accuracy of plus or minus 0.5 percent plus 3 digits on its 600 V range. The ANENG SZ301 listing states plus or minus 1 percent plus 5 digits for DC voltage on the same 600 V top range. For a 230 V reading, the percentage part alone is 1.15 V for the AstroAI and 2.30 V for the ANENG.
The digit terms are fixed counts at each range’s resolution, and neither listing converts them into volts, so the full error band cannot be stated in volts from the listing alone. The comparison shows only the percentage component, which grows with the reading. The listing figures are the only source for these numbers, and they were checked on 2026-10-11.
What the listings do not say
None of the seven listings names a CL320 model, and none states that it is a CL320 substitute. The Klein CL120 does not state a DC current range. The LJPXHHU XL830L and the Fieldpiece SC260 give no numeric voltage or current range in their specification fields. The ZMIWNIED FS899L gives no weight or dimensions.
The listings also disagree with themselves in places. The AstroAI lists both 2 x 1.5 V AAA batteries and a 9V battery. The FNIRSI DMC-100 lists 9999 counts and 10000 counts. The Fieldpiece SC260 weight field reads 0.27 g. None of these conflicts is resolved by the listing, so confirm each one on the live page before relying on it.
Related buying guides
For a clamp-focused comparison, see best true RMS digital clamp meter. For a wider look at multimeters with auto-ranging, see best auto-ranging digital multimeter. If you are choosing a meter for a hand-held outlet or circuit job, best handheld clamp covers the same kind of trade-off between current and voltage tools.
Frequently asked questions
Is there a CL320 listing in this set?
No. None of the 12 research listings names a CL320 model, so this page does not treat the model number as a verified match.
What is the difference between a multimeter and a clamp meter in these listings?
A clamp meter reads current by clamping around a conductor, as the Klein Tools CL120 and FNIRSI DMC-100 listings describe. The digital multimeters on this list use test leads for voltage, resistance and current.
Why do the counts differ for the FNIRSI DMC-100?
The title states 9999 counts while a bullet states 10000 counts. Check the product page before comparing resolution with other meters.
Are these figures independent test results?
No. The figures are what each listing states, and each one carries the date it was checked. They are not measurements made for this page.
Conclusion
For voltage work, the ZMIWNIED FS899L and the AstroAI meter have the most complete stated ratings in this set, with CAT III 1000 V and 600 V figures respectively. For current, the clamp listings are the group to compare, and the Klein CL120 and FNIRSI DMC-100 are the two with the clearest stated current ranges. The CL320 search term does not map to a listing here, so the decision rests on the quantity and voltage category you need.
