# Extech MO55 Combination Pin/Pinless Moisture Meter vs Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter: specs and price compared

A sourced, side-by-side comparison of the Extech MO55 Combination Pin/Pinless Moisture Meter (Extech) and Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter (Protimeter (Amphenol)) among moisture meters. Extech MO55 Combination Pin/Pinless Moisture Meter is the cheaper of the two at $104.78.

## Side by side

| Spec | Extech MO55 Combination Pin/Pinless Moisture Meter | Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter |
| --- | --- | --- |
| US price | $104.78 | $749.99 |
| Brand | Extech | Protimeter (Amphenol) |
| Measurement range pct | Pin: 5-50% wood, 1.5-33% other materials; Pinless: 0-99% | Pin: 8-99% WME (readings above 30% relative); Pinless: 60-1000 (relative scale) |
| Pin vs pinless | Pin and Pinless (combination) | Pin and Pinless (dual-function) |
| Material calibration groups | Wood (low/medium/high), other building materials (low/medium/high) | Wood, drywall, building materials, concrete, fiberglass boat hulls |
| Sensing depth (in) | 1 | 0.75 |
| Accuracy | ±(3% of reading + 5 digits) | — |
| Hold peak function | Yes | Yes |
| Audible alarm | Yes | — |
| Display type | LCD with low/medium/high icons | Backlit LCD |

## Key differences

- Measurement range pct: Extech MO55 Combination Pin/Pinless Moisture Meter Pin: 5-50% wood, 1.5-33% other materials; Pinless: 0-99% vs Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter Pin: 8-99% WME (readings above 30% relative); Pinless: 60-1000 (relative scale)
- Pin vs pinless: Extech MO55 Combination Pin/Pinless Moisture Meter Pin and Pinless (combination) vs Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter Pin and Pinless (dual-function)
- Material calibration groups: Extech MO55 Combination Pin/Pinless Moisture Meter Wood (low/medium/high), other building materials (low/medium/high) vs Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter Wood, drywall, building materials, concrete, fiberglass boat hulls
- Sensing depth (in): Extech MO55 Combination Pin/Pinless Moisture Meter 1 vs Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter 0.75
- Display type: Extech MO55 Combination Pin/Pinless Moisture Meter LCD with low/medium/high icons vs Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter Backlit LCD

## Sources

- Extech MO55 Combination Pin/Pinless Moisture Meter: https://www.extech.com/products/mo55/ (extech.com, verified 2026-08-05)
- Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter: https://www.protimeter.com/surveymaster-2024-model (protimeter.com, verified 2026-08-05)

Canonical: https://frontdeskreview.com/gear/moisture-meters/extech-mo55-vs-protimeter-surveymaster-bld5365/
Cite: Per The Front Desk Review, Extech MO55 Combination Pin/Pinless Moisture Meter ($104.78) vs Protimeter BLD5365 SurveyMaster Dual-Function Moisture Meter ($749.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/moisture-meters/extech-mo55-vs-protimeter-surveymaster-bld5365/
License: CC BY 4.0.