Fieldpiece Instruments
Fieldpiece SC260 Compact Clamp Meter with True RMS
$160.65
Best Clamp Meters · head-to-head
Fieldpiece SC260 Compact Clamp Meter with True RMS vs Extech MA640 True RMS AC/DC Clamp Meter with NCV
A sourced, side-by-side comparison. Fieldpiece SC260 Compact Clamp Meter with True RMS is cheaper at $160.65. Every spec and price links to its source.
Extech (Teledyne FLIR)
Extech MA640 True RMS AC/DC Clamp Meter with NCV
—
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Fieldpiece SC260 Compact Clamp Meter with True RMS |  Extech MA640 True RMS AC/DC Clamp Meter with NCV |
|---|---|---|
| US price | $160.65 | — |
| Brand | Fieldpiece Instruments | Extech (Teledyne FLIR) |
| Released | — | — |
| AC current range | 400 A | 60.00 A / 600.0 A |
| Dc current range | — | 60.00 A / 600.0 A |
| Jaw opening | 1.2 in (30 mm) | 1.5 in (40 mm), conductors up to 500 MCM |
| AC dc voltage range | 600 V AC/DC (overload protected to 600 VDC/600 VAC rms) | AC 6.000V/60.00V/600.0V; DC 600.0mV/6.000V/60.00V/600.0V |
| True RMS | Yes | Yes |
| Resistance continuity | 40 MΩ with 0.01 resolution, with continuity | 600.0Ω to 60.00MΩ, with continuity |
| Capacitance | Yes | 40.00nF to 4000µF |
| Temperature | F/C via included Type K wrap-tab thermocouple (numeric range not published) | -4°F to 1400°F (-20°C to 760°C), Type K |
| Cat safety rating | CAT III 600V | CAT III 600V |
| Display count | 4000 | 6000 |
Sources — Fieldpiece SC260 Compact Clamp Meter with True RMS: fieldpiece.com (verified 2026-08-05). Extech MA640 True RMS AC/DC Clamp Meter with NCV: flir.com (verified 2026-08-05).
What's the difference between the Fieldpiece SC260 Compact Clamp Meter with True RMS and Extech MA640 True RMS AC/DC Clamp Meter with NCV?
Where the two actually differ on the specs we track (7 of 10). Matching specs are omitted.
- AC current range: Fieldpiece SC260 Compact Clamp Meter with True RMS 400 A vs Extech MA640 True RMS AC/DC Clamp Meter with NCV 60.00 A / 600.0 A
- Jaw opening: Fieldpiece SC260 Compact Clamp Meter with True RMS 1.2 in (30 mm) vs Extech MA640 True RMS AC/DC Clamp Meter with NCV 1.5 in (40 mm), conductors up to 500 MCM
- AC dc voltage range: Fieldpiece SC260 Compact Clamp Meter with True RMS 600 V AC/DC (overload protected to 600 VDC/600 VAC rms) vs Extech MA640 True RMS AC/DC Clamp Meter with NCV AC 6.000V/60.00V/600.0V; DC 600.0mV/6.000V/60.00V/600.0V
- Resistance continuity: Fieldpiece SC260 Compact Clamp Meter with True RMS 40 MΩ with 0.01 resolution, with continuity vs Extech MA640 True RMS AC/DC Clamp Meter with NCV 600.0Ω to 60.00MΩ, with continuity
- Capacitance: Fieldpiece SC260 Compact Clamp Meter with True RMS true vs Extech MA640 True RMS AC/DC Clamp Meter with NCV 40.00nF to 4000µF
- Temperature: Fieldpiece SC260 Compact Clamp Meter with True RMS F/C via included Type K wrap-tab thermocouple (numeric range not published) vs Extech MA640 True RMS AC/DC Clamp Meter with NCV -4°F to 1400°F (-20°C to 760°C), Type K
- Display count: Fieldpiece SC260 Compact Clamp Meter with True RMS 4000 vs Extech MA640 True RMS AC/DC Clamp Meter with NCV 6000