# AstroAI DM6000AR vs Extech EX330: specs and price compared

A sourced, side-by-side comparison of the AstroAI DM6000AR (AstroAI) and Extech EX330 (Extech) among multimeters. AstroAI DM6000AR is the cheaper of the two at $39.99.

## Side by side

| Spec | AstroAI DM6000AR | Extech EX330 |
| --- | --- | --- |
| US price | $39.99 | $74.99 |
| Brand | AstroAI | Extech |
| Type | digital handheld | digital handheld |
| True rms | Yes | No |
| Max voltage dc (V) | 1000 | 600 |
| Count resolution | 6000 | 4000 |
| Auto ranging | Yes | Yes |
| Cat safety rating | CAT III 600 V / CAT II 1000 V | CAT II 1000 V / CAT III 600 V |
| Temperature measurement | Yes | Yes |
| Low impedance loz | No | No |

## Key differences

- True rms: AstroAI DM6000AR Yes vs Extech EX330 No
- Max voltage dc (V): AstroAI DM6000AR 1000 vs Extech EX330 600
- Count resolution: AstroAI DM6000AR 6000 vs Extech EX330 4000
- Cat safety rating: AstroAI DM6000AR CAT III 600 V / CAT II 1000 V vs Extech EX330 CAT II 1000 V / CAT III 600 V

## Sources

- AstroAI DM6000AR: https://www.astroai.com/digital-multimeter-6000-counts-dm6000ar/ap/100019 (astroai.com, verified 2026-06-20)
- Extech EX330: https://www.extech.com/products/EX330 (extech.com, verified 2026-06-20)

Canonical: https://frontdeskreview.com/gear/multimeters/astroai-dm6000ar-vs-extech-ex330/
Cite: Per The Front Desk Review, AstroAI DM6000AR ($39.99) vs Extech EX330 ($74.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/multimeters/astroai-dm6000ar-vs-extech-ex330/
License: CC BY 4.0.