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Fluke
Fluke 323 True-RMS Clamp Meter
$207.99
Best Clamp Meters · head-to-head
Fluke 323 True-RMS Clamp Meter vs Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ)
A sourced, side-by-side comparison. Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) is cheaper at $152.54. Every spec and price links to its source.
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Klein Tools
Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ)
$152.54Cheaper
Which is better: the Fluke 323 True-RMS Clamp Meter or Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ)?
On the specs we track, they're closely matched. The Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) is the cheaper at $152.54.
See Fluke 323 True-RMS Clamp Meter on Amazon See Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Fluke 323 True-RMS Clamp Meter | Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) |
|---|---|---|
| US price | $207.99 | $152.54 |
| Brand | Fluke | Klein Tools |
| Released | — | — |
| Ac current range | 400.0 A, 2.0% ±5 digits (45-65 Hz) / 2.5% ±5 digits (65-400 Hz) | 600 A |
| Dc current range | — | 600 A |
| Jaw opening | 30 mm (600 MCM) | 1.38 in (3.5 cm) |
| Ac dc voltage range | 600.0 V AC (1.5% accuracy) / 600.0 V DC (1.0% accuracy) | 1000 V AC/DC |
| True rms | Yes | Yes |
| Resistance continuity | 400.0/4000 Ω, 1.0% accuracy; continuity beeper ≤70 Ω | 60 MΩ max, with continuity |
| Capacitance | — | 6000 µF |
| Temperature | — | -14°F to 1000°F (-26°C to 538°C), via included thermocouple |
| Cat safety rating | CAT III 600V / CAT IV 300V | CAT IV 600V / CAT III 1000V |
| Display count | — | 6000 |
Sources — Fluke 323 True-RMS Clamp Meter: fluke.com (verified 2026-08-05). Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ): digikey.com (verified 2026-08-05).
What's the difference between the Fluke 323 True-RMS Clamp Meter and Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ)?
Where the two actually differ on the specs we track (5 of 10). Matching specs are omitted.
- Ac current range: Fluke 323 True-RMS Clamp Meter 400.0 A, 2.0% ±5 digits (45-65 Hz) / 2.5% ±5 digits (65-400 Hz) vs Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) 600 A
- Jaw opening: Fluke 323 True-RMS Clamp Meter 30 mm (600 MCM) vs Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) 1.38 in (3.5 cm)
- Ac dc voltage range: Fluke 323 True-RMS Clamp Meter 600.0 V AC (1.5% accuracy) / 600.0 V DC (1.0% accuracy) vs Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) 1000 V AC/DC
- Resistance continuity: Fluke 323 True-RMS Clamp Meter 400.0/4000 Ω, 1.0% accuracy; continuity beeper ≤70 Ω vs Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) 60 MΩ max, with continuity
- Cat safety rating: Fluke 323 True-RMS Clamp Meter CAT III 600V / CAT IV 300V vs Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ) CAT IV 600V / CAT III 1000V