Extech
Extech MO55 Combination Pin/Pinless Moisture Meter
$104.78
Best Moisture Meters · head-to-head
Extech MO55 Combination Pin/Pinless Moisture Meter vs Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter
A sourced, side-by-side comparison. Extech MO55 Combination Pin/Pinless Moisture Meter is cheaper at $104.78. Every spec and price links to its source.
Calculated Industries
Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Extech MO55 Combination Pin/Pinless Moisture Meter | Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter |
|---|---|---|
| US price | $104.78 | — |
| Brand | Extech | Calculated Industries |
| Released | — | — |
| Measurement range pct | Pin: 5-50% wood, 1.5-33% other materials; Pinless: 0-99% | Pin: 5-50% wood, 1.5-33% other materials; Pinless: 0.1-100% |
| Pin vs pinless | Pin and Pinless (combination) | Pin and Pinless (combination) |
| Material calibration groups | Wood (low/medium/high), other building materials (low/medium/high) | Wood, lumber, firewood, drywall, plaster, brick, concrete |
| Sensing depth (in) | 1 | 0.75 |
| Accuracy | ±(3% of reading + 5 digits) | ±(3% + 3 digits) pin; ±3% pinless |
| Hold peak function | Yes | Yes |
| Audible alarm | Yes | Yes |
| Display type | LCD with low/medium/high icons | Large digits, white LED backlight |
Sources — Extech MO55 Combination Pin/Pinless Moisture Meter: extech.com (verified 2026-08-05). Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter: globaltestsupply.com (verified 2026-08-05).
What's the difference between the Extech MO55 Combination Pin/Pinless Moisture Meter and Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Measurement range pct: Extech MO55 Combination Pin/Pinless Moisture Meter Pin: 5-50% wood, 1.5-33% other materials; Pinless: 0-99% vs Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter Pin: 5-50% wood, 1.5-33% other materials; Pinless: 0.1-100%
- Material calibration groups: Extech MO55 Combination Pin/Pinless Moisture Meter Wood (low/medium/high), other building materials (low/medium/high) vs Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter Wood, lumber, firewood, drywall, plaster, brick, concrete
- Sensing depth (in): Extech MO55 Combination Pin/Pinless Moisture Meter 1 vs Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter 0.75
- Accuracy: Extech MO55 Combination Pin/Pinless Moisture Meter ±(3% of reading + 5 digits) vs Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter ±(3% + 3 digits) pin; ±3% pinless
- Display type: Extech MO55 Combination Pin/Pinless Moisture Meter LCD with low/medium/high icons vs Calculated Industries 7445 AccuMASTER Duo Pro Pin & Pinless Moisture Meter Large digits, white LED backlight