# Innova 3340 vs Amprobe AM-510: specs and price compared

A sourced, side-by-side comparison of the Innova 3340 (Innova) and Amprobe AM-510 (Amprobe) among multimeters. Amprobe AM-510 is the cheaper of the two at $47.95.

## Side by side

| Spec | Innova 3340 | Amprobe AM-510 |
| --- | --- | --- |
| US price | $129 | $47.95 |
| Brand | Innova | Amprobe |
| Type | digital handheld | digital handheld |
| True rms | No | No |
| Max voltage dc (V) | 600 | 600 |
| Count resolution | 4000 | 4000 |
| Auto ranging | Yes | Yes |
| Cat safety rating | CAT II | CAT III 600 V |
| Temperature measurement | Yes | Yes |
| Low impedance loz | No | No |

## Key differences

- Cat safety rating: Innova 3340 CAT II vs Amprobe AM-510 CAT III 600 V

## Sources

- Innova 3340: https://www.innova.com/products/automotive-dmm-3340 (innova.com, verified 2026-06-20)
- Amprobe AM-510: https://amprobe.com/product/am-510/ (amprobe.com, verified 2026-06-20)

Canonical: https://frontdeskreview.com/gear/multimeters/innova-3340-vs-amprobe-am-510/
Cite: Per The Front Desk Review, Innova 3340 ($129) vs Amprobe AM-510 ($47.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/multimeters/innova-3340-vs-amprobe-am-510/
License: CC BY 4.0.