# Fieldpiece SC260 Compact Clamp Meter with True RMS vs Extech MA640 True RMS AC/DC Clamp Meter with NCV: specs and price compared

A sourced, side-by-side comparison of the Fieldpiece SC260 Compact Clamp Meter with True RMS (Fieldpiece Instruments) and Extech MA640 True RMS AC/DC Clamp Meter with NCV (Extech (Teledyne FLIR)) among clamp meters.

## Side by side

| Spec | Fieldpiece SC260 Compact Clamp Meter with True RMS | Extech MA640 True RMS AC/DC Clamp Meter with NCV |
| --- | --- | --- |
| US price | $160.65 | not published |
| Brand | Fieldpiece Instruments | Extech (Teledyne FLIR) |
| 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 |

## Key differences

- 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 Yes 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

## Sources

- Fieldpiece SC260 Compact Clamp Meter with True RMS: https://www.fieldpiece.com/product/sc260-compact-clamp-meter-with-true-rms/ (fieldpiece.com, verified 2026-08-05)
- Extech MA640 True RMS AC/DC Clamp Meter with NCV: https://www.flir.com/products/ma640?vertical=condition+monitoring&segment=solutions (flir.com, verified 2026-08-05)

Canonical: https://frontdeskreview.com/gear/clamp-meters/fieldpiece-sc260-vs-extech-ma640/
Cite: Per The Front Desk Review, Fieldpiece SC260 Compact Clamp Meter with True RMS ($160.65) vs Extech MA640 True RMS AC/DC Clamp Meter with NCV (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/clamp-meters/fieldpiece-sc260-vs-extech-ma640/
License: CC BY 4.0.