Fluke 323
#5 in AC onlyFull review
A simple, well-built true-RMS AC clamp for electricians who want a Fluke for everyday panel and circuit checks.
Amazon $152.85$152.85
400 ANoCAT IV 300 V / CAT III 600 V
3.0/5
An inexpensive AC clamp for homeowners and apprentices who need occasional current and voltage checks.
- 400 AAC current
- NoDC current
- CAT III 600 VSafety
- 41 mmJaw
Check price at Amazon$63.89
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Non-contact voltage detector in the jaw checks for live wires before you touch them
- Wide 1.6 in jaw takes large conductors
- Among the cheapest clamps from a major tool brand
Cons
- Not true RMS, so readings drift on electronic loads
- AC current only
How it scores
The rating comes from 8 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | CL120 |
|---|---|
| Measurement | |
| AC current (jaw) | 400 A |
| DC current (jaw) | No |
| Voltage | 600 V |
| Current accuracy | 2% of reading |
| Jaw opening | 41 mm |
| Safety | |
| CAT rating | CAT III 600 V |
| Features | |
| True RMS | No |
| Inrush | No |
| LoZ mode | No |
| Non-contact voltage | Yes |
| Low-pass filter | No |
| Temperature | No |
| Phone app | No |
| Build | |
| Weight | 313 g |
| Warranty | 2 years |
Alternatives in this type
Fluke 302+
#6 in AC onlyFull review
A basic AC clamp for occasional current checks on plain resistive and motor loads, at an entry price.
Amazon $88$88
400 ANoCAT IV 300 V / CAT III 600 V
Southwire 21510N
#8 in AC onlyFull review
A basic AC clamp for household circuits, with the fewest published specs in this list.
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400 ANoCAT III 600 V
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