# Amprobe AMP-25 AC/DC TRMS Mini-Clamp vs Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter: specs and price compared

A sourced, side-by-side comparison of the Amprobe AMP-25 AC/DC TRMS Mini-Clamp (Amprobe) and Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter (Southwire) among clamp meters.

## Side by side

| Spec | Amprobe AMP-25 AC/DC TRMS Mini-Clamp | Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter |
| --- | --- | --- |
| US price | not published | not published |
| Brand | Amprobe | Southwire |
| Ac current range | 60.00 / 300.0 A | 400 A |
| Dc current range | 60.00 / 300.0 A | 400 A (per user-facing marketing copy and verified purchaser reviews on southwire.com describing DC clamp-amp use; exact numeric DC accuracy table not published on the fetched product page) |
| Jaw opening | 1.0 in (25 mm) max | — |
| Ac dc voltage range | — | — |
| True rms | Yes | Yes |
| Resistance continuity | — | — |
| Capacitance | — | Yes |
| Temperature | — | Yes |
| Cat safety rating | CAT III 600V | CAT III 600V |
| Display count | 6000 | — |

## Key differences

- Ac current range: Amprobe AMP-25 AC/DC TRMS Mini-Clamp 60.00 / 300.0 A vs Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter 400 A
- Dc current range: Amprobe AMP-25 AC/DC TRMS Mini-Clamp 60.00 / 300.0 A vs Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter 400 A (per user-facing marketing copy and verified purchaser reviews on southwire.com describing DC clamp-amp use; exact numeric DC accuracy table not published on the fetched product page)

## Sources

- Amprobe AMP-25 AC/DC TRMS Mini-Clamp: https://www.amprobe.com/wp-content/uploads/2019/08/AMP-25-ds.pdf (amprobe.com, verified 2026-08-05)
- Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter: https://www.southwire.com/tools-equipment/test-measurement/21550t-clamp-meter-400a-ac-dc/p/65031840 (southwire.com, verified 2026-08-05)

Canonical: https://frontdeskreview.com/gear/clamp-meters/amprobe-amp-25-vs-southwire-21050t/
Cite: Per The Front Desk Review, Amprobe AMP-25 AC/DC TRMS Mini-Clamp (not published) vs Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/clamp-meters/amprobe-amp-25-vs-southwire-21050t/
License: CC BY 4.0.