Product Code: PRSURVE3

Protimeter SurveyMaster 3 BLD5375 Dual-Function Moisture Meter with Bluetooth

Name: Protimeter SurveyMaster 3 BLD5375 Dual-Function Moisture Meter with Bluetooth
Brand: Protimeter
SKU: PRSURVE3
Price: 618.19 GBP
Availability: InStock

£618.19

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Area	Excluded postcodes
North-east Scotland	AB31–AB45, AB51–AB56
Central & northern Highlands	FK19–FK21; all IV
Outer Hebrides	All HS
Arran & Cumbrae	KA27–KA28
Caithness, east Sutherland & Orkney	All KW
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Unit 1 Penton Business Park, Stephenson Road, Salisbury, SP2 7NP.

Protimeter SurveyMaster 3 BLD5375 is a professional dual-function moisture meter combining pin-type measurement and non-invasive moisture scanning in one robust handheld instrument.

Use the non-invasive Search mode to rapidly scan floors, walls and other building materials for changes in moisture below the surface, then switch to pin Measure mode to investigate specific areas and obtain a direct reading from timber or a comparative Wood Moisture Equivalent reading from other materials.

The current SurveyMaster features a larger backlit display, colour-coded moisture indicators, Bluetooth connectivity, automatic calibration checks and user calibration of the non-invasive mode, making it an excellent choice for flooring contractors, building surveyors, restoration professionals and moisture investigations.

Why Choose the Protimeter SurveyMaster 3?

Two moisture meters in one professional instrument.
Pin mode for direct moisture measurement.
Non-invasive Search mode for rapid surface and sub-surface scanning.
Detects changes in moisture up to approximately 19mm below the surface.
Suitable for wood, drywall, concrete and other building materials.
Large backlit digital display.
Green, yellow and red moisture-condition indicators.
Bluetooth connectivity with the Protimeter Connect App.
Store readings, photographs, dates, times and measurement locations.
Automatic pin-mode calibration checks.
User field calibration for the non-invasive mode.
Auxiliary connection for compatible moisture probes.
Two-year manufacturer’s warranty.

Ideal For

Checking timber before installing wood flooring.
Scanning concrete and screeds for areas of increased moisture.
Assessing solid and engineered wood flooring.
Investigating moisture beneath compatible floor coverings.
Checking walls, ceilings, plaster and drywall.
Building surveys and property inspections.
Flood and water-damage restoration.
New-build and refurbishment projects.
Comparing moisture levels across a floor or structure.
Locating areas requiring further investigation or RH testing.

Two Measurement Modes

Non-Invasive Search Mode

Rapidly scans walls, floors and other materials without leaving pinholes. It gives relative readings from 60 to 999 and can identify changes in moisture up to approximately 19mm beneath the surface.

Pin Measure Mode

Uses the integral pins or a compatible external probe to provide direct percentage moisture-content readings in wood and comparative %WME readings in other building materials.

Reference Mode

Stores a baseline reading so subsequent measurements can be compared against a known dry area or reference point.

Professional Flooring Advice

Begin in non-invasive Search mode to scan the wider floor area and identify areas giving unusually high readings. Follow up with pin measurements where appropriate to investigate the material more closely.

For timber, the pin mode provides an actual percentage moisture-content reading. In materials other than wood, pin readings are displayed as comparative Wood Moisture Equivalent (%WME) values.

The SurveyMaster is extremely useful for locating areas of concern in concrete and screeds, but it does not replace a suitable hygrometer test where the flooring manufacturer requires a relative humidity reading from within the subfloor.

Technical Specifications

Manufacturer	Protimeter
Model	SurveyMaster BLD5375
Measurement Type	Pin and non-invasive dual-function moisture meter
Pin Measurement Range	6%–99% WME
Pin Dry Range	Green: 6%–16.9%
Pin At-Risk Range	Yellow: 17%–19.9%
Pin Wet Range	Red: 20%–99.9%
Non-Invasive Range	60–999 relative
Non-Invasive Dry Range	Green: 60–169
Non-Invasive At-Risk Range	Yellow: 170–199
Non-Invasive Wet Range	Red: 200–999
Non-Invasive Scan Depth	Up to approximately 19mm below the surface
Integral Pin Depth	Up to approximately 10mm
Display	Backlit digital LCD with multicolour LED moisture arc
Connectivity	Bluetooth Low Energy connection to the Protimeter Connect App
Calibration	Automatic WME calibration checks and user calibration of non-invasive mode
Probe Connection	Compatible with Protimeter auxiliary moisture probes
Warranty	Two years against manufacturing defects

Using the Protimeter SurveyMaster

1. Establish a Dry Reference

Where possible, begin by taking readings from an area believed to be dry. This gives you a baseline against which other measurements can be compared.

2. Scan in Non-Invasive Mode

Place the flat sensor surface on the material being tested and allow the reading to stabilise. Take readings at regular intervals rather than sliding the meter continuously across the surface.

3. Identify Areas of Concern

Look for changes or unusually high readings compared with the dry reference. The non-invasive mode is intended to locate potential moisture rather than provide an exact moisture percentage.

4. Confirm with Pin Mode

Where appropriate, press the integral pins firmly into the material or connect the supplied heavy-duty moisture probe. Pin readings in wood represent actual moisture content, while other materials are shown as comparative %WME values.

5. Save the Results

Connect the SurveyMaster to the Protimeter Connect App to record readings, create individual jobs and attach photographs, dates, times, material types and measurement locations.

Understanding the Readings

Pin mode uses electrical conductance between the two measuring pins. In wood, this gives an actual percentage moisture-content reading. In plaster, masonry and other materials, the value is expressed as %WME for comparative assessment.

Non-invasive Search mode produces a relative reading rather than an exact percentage. Its main purpose is to identify changes in moisture across a surface and locate areas that may require further testing.

Conductive materials such as metal, carbon and salts can influence both measurement methods and may produce unusually high results.

What Is Included?

Protimeter SurveyMaster BLD5375 moisture meter.
Heavy-duty moisture probe and connecting lead.
Protective pouch with belt loop.
Quick-start guide.
Wood calibration chart.

Important Information

The integral measuring pins are extremely sharp and should be covered when not in use.
Take several readings across the test area rather than relying on one isolated measurement.
Pin readings outside timber are comparative %WME values, not exact moisture percentages.
Non-invasive Search mode gives relative readings and is intended to locate areas of concern.
Metal, conductive salts, carbon and hidden services can affect readings.
Do not slide the meter across surfaces when using non-invasive mode.
The SurveyMaster does not replace a specified relative humidity test for concrete or screeds.
Always follow the flooring manufacturer’s permitted moisture limits and testing requirements.

SurveyMaster or Digital Mini?

Choose the Protimeter Digital Mini when your primary requirement is direct pin testing of timber and building materials.

Choose the Protimeter SurveyMaster when you also want non-invasive scanning to rapidly inspect wider areas and locate potential moisture beneath surfaces before taking more targeted pin readings.

Explore Our Digital Measuring Tools

Browse our professional moisture meters and digital measuring equipment for wood flooring and subfloor preparation.

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1. What is the Protimeter SurveyMaster used for?

It is a dual-function moisture meter used to scan for moisture non-invasively and take direct pin readings in timber and other building materials.

2. What is the difference between Search mode and Measure mode?

Search mode scans beneath the surface without leaving pinholes and produces relative readings. Measure mode uses pins to provide actual moisture-content readings in wood or comparative %WME readings in other materials.

3. How deeply can the SurveyMaster detect moisture?

The official non-invasive scanning depth is up to approximately 19mm below the surface. The integral pins penetrate up to approximately 10mm.

4. Can it be used on wood flooring?

Yes. It is suitable for assessing solid wood flooring, engineered timber layers, plywood, joists and other wood products before installation.

5. Can it test moisture through tiles or vinyl?

Its non-invasive mode can help detect changes in moisture beneath compatible wall and floor coverings, including tile, wood and vinyl. The results are comparative and should be followed by further investigation where required.

6. Can it test concrete or screeds?

It can scan concrete and identify areas that may contain increased moisture, but it does not replace a hygrometer test where an exact subfloor relative humidity result is required.

7. Does it connect to a mobile app?

Yes. Bluetooth connectivity allows readings and photographs to be stored in the free Protimeter Connect App, together with dates, times, job details and measurement locations.

8. Does the SurveyMaster include an external probe?

Protimeter’s standard BLD5375 supply includes a heavy-duty moisture probe and lead, along with the meter, protective pouch, quick-start guide and wood calibration chart.

9. What do the green, yellow and red indicators mean?

They give a quick visual guide to dry, at-risk and wet conditions. The thresholds differ between pin mode and non-invasive Search mode.

10. Is the SurveyMaster better than the Digital Mini?

The SurveyMaster adds non-invasive Search mode, allowing larger areas to be scanned before confirming findings with pins. The Digital Mini is better suited where direct pin measurement is the main requirement.

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