Fluke 325vsKlein Tools CL800
Two clamp meters, compared from their makers' published US specs. Specs checked 2026-10-17. Makers do not always rate the same way, so treat cross-brand figures with care.
Fluke 325
CAT III 600 V, CAT IV 300 V400 A400 A
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Find 325 prices on Amazon Find 325 prices at Acme Tools Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.Klein Tools CL800
CAT IV 600 V600 A600 A
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Find CL800 prices on Amazon Find CL800 prices at Acme Tools Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.How to choose between them
- Working at the service entrance or on utility feeds needs a CAT IV rating; panels and feeders CAT III. The 325 is rated CAT III 600 V, CAT IV 300 V; the CL800 CAT IV 600 V. The lower of the meter's and the leads' ratings applies.
- Clamping large conductors or bundles? Jaw openings as published: 325 30 mm, CL800 1.38 in.
- In the box: the 325 comes with TL75 Test Leads, Type K Thermocouple, Two AAA Batteries (Installed); the CL800 with Carrying Case, 41'' (1041.4 mm) Test Leads, Thermocouple with Adapter.
From the published figures only; no testing. Rated figures from different makers are not measured the same way.
Where they differ
- Safety rating: the 325 is CAT III 600 V, CAT IV 300 V; the CL800 is CAT IV 600 V.
- Klein Tools CL800: higher AC current range (600 A vs 400 A).
- Klein Tools CL800: higher DC current range (600 A vs 400 A).
- Klein Tools CL800: higher AC voltage range (1,000 V vs 600 V).
- Klein Tools CL800: higher DC voltage range (1,000 V vs 600 V).
21 of 22 listed specs differ or are listed by only one maker. Stated from the published figures only; no testing.
Every published spec, side by side
| Spec | Fluke 325 | Klein Tools CL800 |
|---|---|---|
| Safety rating (IEC 61010 CAT)Differs | CAT III 600 V, CAT IV 300 V | CAT IV 600 V |
| AC current, max rangeDiffers | 400 A | 600 A |
| DC current, max rangeDiffers | 400 A | 600 A |
| AC voltage, max rangeDiffers | 600 V | 1,000 V |
| DC voltage, max rangeDiffers | 600 V | 1,000 V |
| True-RMS | Yes | Yes |
| Jaw openingDiffers | 30 mm | 1.38 in |
| Display resolutionOnly one listed | Not on maker page | 6,000 counts |
| Batteries (cells)Only one listed | Not on maker page | 2 x AAA |
| WarrantyOnly one listed | Two-year | Not on maker page |
| Capacitance, max rangeDiffers | 1,000 μF | 6,000 μF |
| Frequency, max rangeDiffers | 500 Hz | 500 kHz |
| Temperature measurementDiffers | -10.0°C to 400.0°C (14.0°F to 752.0°F) | -14° - 1,000°F (-26° - 538°C) |
| ContinuityOnly one listed | ≤ 30 Ω | Not on maker page |
| Min/Max recordingOnly one listed | Yes | Not on maker page |
| Backlit displayOnly one listed | Yes | Not on maker page |
| SizeDiffers | 207 x 75 x 34 | 9.09 x 3.81 x 1.55 in (L x W x H) |
| WeightOnly one listed | 283 g | Not on maker page |
| Resistance, max rangeOnly one listed | Not on maker page | 60 MΩ |
| Low-impedance (LoZ) modeOnly one listed | Not on maker page | Yes |
| Drop protectionOnly one listed | Not on maker page | 6.6 ft (2 m) |
| Ingress protectionOnly one listed | Not on maker page | IP40 |
"Differs" marks different published values; pure formatting is not counted. "Only one listed" marks a spec only one maker page gives. Box contents, owner ratings, manuals and sources are on each model's own page: 325, CL800. Swap either model in the compare tool. copied
Fluke 325
CAT III 600 V, CAT IV 300 V400 A400 A
Paid link: we may earn a commission.
Find 325 prices on Amazon Find 325 prices at Acme Tools Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.Klein Tools CL800
CAT IV 600 V600 A600 A
Paid link: we may earn a commission.
Find CL800 prices on Amazon Find CL800 prices at Acme Tools Opens the retailer in a new tab; the current price is shown there. Marketplace sellers vary: check the seller and exact model.Sources
- Fluke US product page 325, retrieved 2026-10-17
- Klein Tools US product page CL800, retrieved 2026-10-17
Researched by Rob, licensed electrician (Australia). Found an error? Tell us.
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