Best Multimeters · head-to-head

AstroAI DM6000AR vs Extech EX330

A sourced, side-by-side comparison. AstroAI DM6000AR is cheaper at $39.99. Every spec and price links to its source.

Which is better: the AstroAI DM6000AR or Extech EX330?

On the specs we track, they're closely matched. The AstroAI DM6000AR is the cheaper at $39.99.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec AstroAI DM6000AR Extech EX330
US price $39.99 $74.99
BrandAstroAIExtech
Released
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

Sources — AstroAI DM6000AR: astroai.com (verified 2026-06-20). Extech EX330: extech.com (verified 2026-06-20).

What's the difference between the AstroAI DM6000AR and Extech EX330?

Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.

  • True rms: AstroAI DM6000AR true vs Extech EX330 false
  • 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

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