Protimeter SurveyMaster Dual-Function Moisture Meter
The SurveyMaster is the original dual-function moisture meter: pin measurement and non-invasive scanning in one instrument, so you can map the extent of a problem without marking a surface and then quantify it where it matters. This is the 2024 model, with a larger display, longer battery life and Bluetooth to the Protimeter Connect app.
Two modes, and why you need both
Non-invasive search mode
Reads to about 19 mm below the surface using radio frequency, on a relative 60 to 999 scale. Leaves no marks, so it suits finished surfaces, tiled areas and pre-purchase inspection. Surface moisture does not distort the reading.
It responds to anything conductive behind the surface, not only water — reinforcing mesh, foil-backed insulation, metal lath, pipework and wiring all read high on dry material. Confirm anything unexpected with pins.
Pin measure mode
Measures 6% to 99% WME where the pins make contact, to a maximum needle depth of 10 mm. This is the mode that quantifies moisture and tracks a structure drying day by day. Plug-in probes extend it to depth.
Reference mode
Protimeter's patented reference mode works in both pin and search modes. Measure a dry standard — known-dry material of the same construction — hold the button until the reading stores, and every subsequent reading is then displayed alongside a second figure showing how far above or below that baseline it sits.
This is the correct way to use a moisture meter on an unfamiliar building. An absolute number means little without knowing what dry looks like in that material; the difference from a dry standard means a great deal.
What is new in the 2024 model
- Larger display
- Battery life approximately three times longer, on 2 × AA
- Automatic WME calibration check every 50 power cycles
- User field calibration of the non-invasive mode
- Bluetooth connectivity to the Protimeter Connect app, with readings saved and downloaded with a time and date stamp
- Over-the-air firmware upgrade and a multilingual interface
Specifications
| Pin measurement range |
6% to 99% WME |
| Pin measurement depth |
Up to 10 mm |
| Non-invasive range |
60 to 999 relative, up to 19 mm deep |
| Display |
Digital backlit LCD |
| Adjustable settings |
Auto shut-off 0–10 min, hold, backlight, buzzer, dry/at-risk/wet indicator |
| Connectivity |
Bluetooth Low Energy to the Protimeter Connect app |
| Batteries |
2 × AA, included |
| Dimensions |
190 × 70 × 49 mm |
| Gross weight |
230 g |
| Warranty |
24 months on the instrument. Excludes wear on accessories and consumables |
What is in the box
- SurveyMaster instrument
- Carry pouch and wrist strap
- Heavy duty external probe
- Wood calibration chart
- Instructions
- 2 × AA batteries
Applications
- Building survey and pre-purchase inspection
- Fire and flood restoration — mapping intrusion, then documenting the drying curve
- Concrete and timber floors, subfloors and joists
- Drywall, plaster, masonry, stucco, concrete block and EIFS
- Fibreglass boat hulls
Optional probes
How it compares
| Instrument |
Modes |
Measuring range |
| SurveyMaster |
Pin and non-invasive |
6–99% WME; 60–999 relative |
| MMS3 |
Pin, non-invasive, humidity, surface temperature |
6–99% WME; 60–999 relative; plus RH and temperature |
| Aquant |
Non-invasive only |
60–999 relative |
| Digital Mini |
Pin only |
6–99% WME |
| ReachMaster Pro |
Non-invasive, 114 cm telescopic handle |
60–999 relative |
| TimberMaster |
Pin only, timber-specific scales |
7.9–99% WME |
The SurveyMaster is also supplied in the Technician's Kit alongside a HygroMaster 2.
Calibration
The instrument runs an automatic WME calibration check periodically, and a check can be run at any time against the Calcheck device. For a documented conformance certificate, twelve months is a sensible starting interval, adjusted to your own work environment and quality procedures. Certification is available in Australia.
Documents
Not sure whether the SurveyMaster or a four-in-one MMS3 suits the work you do? Contact The Moisture Meter Company before ordering.