# Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter: specs and price

**Price (US):** Not published (Southwire sells through distributors/retailers rather than displaying consumer pricing on southwire.com, and no reliably current US retail price could be confirmed for either SKU via direct page access during this research pass (Amazon, Home Depot, Grainger, and Zoro all blocked automated access); priceUsd is left null rather than guessed. A used unit was seen at $39.90 on eBay, which is not usable as a new-unit price reference.), as of 2026-08-05.
**Brand:** Southwire

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | Not published |
| Brand | Southwire |
| Ac current range | 400 A |
| Dc current range | 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 | — |
| Ac dc voltage range | — |
| True rms | Yes |
| Resistance continuity | — |
| Capacitance | Yes |
| Temperature | Yes |
| Cat safety rating | CAT III 600V |
| Display count | — |

## Frequently asked questions

**How much does the Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter cost?**

The Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter has no published US price as of 2026-08-05.

**What are the Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter's key specs?**

Southwire 21050T / 21550T 400A True RMS AC/DC Clamp Meter (Southwire): acCurrentRange 400 A, dcCurrentRange 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), trueRms Yes, capacitance Yes, temperature Yes. Full sourced spec sheet verified 2026-08-05.

Source: https://www.southwire.com/tools-equipment/test-measurement/21550t-clamp-meter-400a-ac-dc/p/65031840 (southwire.com, accessed 2026-08-05)
Corroboration: https://www.amazon.com/Southwire-Equipment-21050T-Multimeter-Functions/dp/B00HFYKSMY (accessed 2026-08-05)
Canonical: https://frontdeskreview.com/product/clamp-meters/southwire-21050t/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl