Protimeter MMS2 Moisture Meter - Moisture Measurement System

MMS2 Moisture Measurement System meters are three instruments in one. It measures moisture in timber via the pins, surveys most building materials via a built in sensor at the back of the unit and is a hygrometer.

The MMS2 is a Surveymaster and a Hygromaster in one unit.

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Protimeter MMS2 Moisture Meter - Moisture Measurement System
  • Protimeter MMS2 Moisture Meter
  • Protimeter MMS2 Moisture Meter - Side
  • Protimeter MMS2 Moisture Meter - Back
  • Protimeter MMS2 Moisture Meter - In Use

The all new MMS2 represents the latest Protimeter technology in one intuitive, robust and fully functional design. If you’re surveying buildings, inspecting a home, drying a building after a flood, or testing concrete moisture for a flooring application, the MMS2 is the solution for you.

  • Pin moisture measurement
  • Non-invasive moisture measurement
  • Non-contact IR temperature measurement
  • Fast responding relative humidity and temperature measurement


  • Full building moisture diagnostics on easy-to-use instrument
  • Fast responding hygrometer speeds up building surveys
  • No need to plug in multiple accessories


  • Intuitive user interface with color screen
  • Data logging
  • Firmware upgradable
  • Psychrometric calculations
  • Surface non-contact temperature measurement with laser pointer


View FileDatasheet - Protimeter MMS2 Moisture Meters    Size: (1.16 MB)
View FileProduct Manual - Protimeter MMS2    Size: (1.17 MB)

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  • Is there a connection between condensation and dewpoint?

    In condensation, there is no explanation of dewpoint temperature. Dewpoint is the temperature at which moisture condenses. It is a function of ambient temperature and %rh and it varies if the %rh changes or ambient temperature changes or both change. Moisture condense on mirrors, walls etc when their surface temperatures fall below dewpoint. A simple example; when you take a cold bottle of beer out of the fridge, water droplets form on the glass. The reason – the temperature of the glass is below dewpoint temperature. The MMS enables the user to measure humidity, ambient temp, dewpoint and surface temperature for condensation investigation work. It even shows you the difference between surface temperature and dew point.

    Other answers to this question

    Answer 2
    The Surveymaster does not use “sonic” signals in search mode. It measures the dielectric capacitance of the material by using radio frequency (RF) signals.

    Answer 3
    Protimeter two-prong meters (Mini, Timbermaster, Surveymaster & MMS) are indeed calibrated for timber. However, these instruments are not designed solely for use in timber, they are designed for use in the whole range of non-conductive building materials. The point to note is that they only measure actual moisture in wood. In other materials they measure %WME values. This is very significant, because it means that the meters can be used to establish the moisture condition of the materials under investigation by using the wood calibration as a reference.

    Answer 4
    Hygroscopic salts, carbon and other conductors will cause high moisture meter readings. When this is suspected, instruments such as the MMS should be used in hygrometry mode to measure the ERH of the material under investigation.

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  • I need to measure moisture in a laminate flooring which is made out of HDF (high density fibre board) and other layers to produce a hard wearing laminate floor. I need a unit to measure moisture within an installed floor that may be experiencing some problems - problems with our floors usually come down to customer wet mopping, spillage etc. I need an accurate way of testing floor without pulling floor up, how could I do this?

    Should be able to identify damp spots within the HDF floor using the RF search modes of the Aquant, Surveymaster and MMS. Readings are relative only but if moisture (from mopping etc) has penetrated the floor, it should be detectable with this method.

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  • Do the timber moisture meters work on MDF?

    The fact that timber instruments start measuring at 6-7% moisture content in timber does not preclude their use for other materials at lower moisture contents. Eg. In plaster board moisture content as low as 2% may be measured. Similarly, since we do not know exactly what the MDF consists of, the easiest way is to get a sample, which has a moisture content of 4% and see if one of our timber instruments work.

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  • What scale should I use when looking for Osmosis in GRP?

    Osmosis is quite common in the marine world. A major hazard is what is known as osmosis (when the gel coat becomes semi porous) and will lead to eventual breakdown of the structure should use the A scale. This scale is also used on the Mini, Surveymaster and MMS meters.

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  • I want to measure moisture up to 30% in plaster figures before they are painted. Will your timber moisture meters work?

    Yes, you should be able to use these to assess the moisture condition of plaster figures in the same way you would a wall Your customer could use the mini or similar to take relative readings. You would actually be measuring %WME values.

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  • Customer using a Timbermaster to measure blackbutt timber on a plywood sub floor and water under the flooring has caused the blackbutt to come off the sub floor. The blackbutt measures 13%-14% and the plywood measures 23%-25%. What should the plywood measure when dry? Also which scale should the customer be measuring the plywood with? Scale A?

    Wood, including ply, is in a safe air dry condition when the moisture content is 16% or lower (green zone on our Mini and Surveymaster instruments). The borderline or at-risk condition is 16-20%mc, indicated by the yellow zone. Damp wood has 20%mc or greater, in the red zone. If using a Timbermaster for plywood, the customer should use the A scale. This scale is also used on the Mini, Surveymaster and MMS meters.

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  • I asked you about polystyrene ten years ago and wondered if there have been any newer test methods? Would humidity now be more accurate?

    This really depends of the accuracy of measurement sought by the customer and the physical amount of water within the polystyrene itself. If customer is looking for simple moisture detection, then it may be that the radio frequency (RF detection devices (Aquant, Surveymaster and MMS) will be adequate as thickness of material (18-25mm) is not so great. Can the material be tested from both sides?

    But RF detection is relative measurement and can be affected by variables (temperature, inconsistency of the materials) etc). If a more precise measurement is required, I suspect %WME using deep wall probes will be more reliable and useful. Are you aware of the EIFS probe? This is used to push through polystyrene insulation widely used in low cost American houses external insulation finishing system. Same principle as deep wall probes but a lot more convenient to use. Humidity techniques, viable, I think but time consuming to get an equilibrium rh measurement.

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  • If a subfloor has water pipes running through it and an MMS drill and plug test is being conducted, will the results be affected because of the water in the pipes?

    If measuring ERH values with the MMS, hygrostick and humidity sleeves then the measurement will not be affected by either the pipe material or the water within the pipe. Reason for this is that the hygrostick measures the relative humidity of the area in the hole rather than the concrete surrounding it. A word of caution! If the subfloor heating system is on then the temperature of the concrete floor will be fluctuating. This certainly would affect the ERH readings. The subfloor heating system should be switched off well in advance of taking measurements to ensure that the floor slab is at a constant normal temperature. By contrast, the MMS search mode (RF) readings could be affected. This would depend on the depth of the pipes below the surface and the diameter of the pipes etc. It should be easy to spot though. You would expect search mode readings to rise if directly over the pipe and to fall when moving to either side of the pipe.

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Weight 283g
Dimensions 190.5 x 94 x 56mm
Power 9V Battery (Included)
Moisture Measurement Range

Pin: (%WME) 8% to 99%, readings over 30% are relative
Non-invasive: (RF) up to ¾ in (19mm) deep 60 to 1000 (relative)

IR Surface Temperature Probe Range 0°C to 70°C
Infrared Surface Temperature Range

IR Based - With 12:1 (D:S) Ratio
Range -20°C to 80°C
Accuracy ±2°C 

Hygrostick Data (Nominal)

30% to 40% RH—(±3% RH) at 20°C
41% to 98% RH—(±2% RH) at 20°C
Range 0°C to 50°C ±0.3°C

Quikstick & Quikstick ST Data (Nominal)

0% to 10% RH—(±3% RH) at 20°C
10% to 90% RH—(±2% RH) at 20°C
90% to 98% RH—(±3% RH) at 20°C
Range 0°C to 50°C ±0.3°C
Nominal response 30% to 90% and back to 30% RH in 45 seconds at 20°C

Data Storage

Store up to 8,000 results with date and time stamp from all instrument functions with the push of a button. Store 6,100 results with automatic logging.

Quikstick ST
HD MC Probe
Hygro/Quick Ext Lead
HD Hammer
4xHammer Pins
Deep Wall Probes 5" (127mm)
Deep Wall Probes 9" (229mm)
Surface Temp Sensor
Cal Check
Software + Cable
Canvas Carry Pouch
Hard Carry Case

Product Options

Select any product options you wish to enquire about:

  • Protimeter MMS2 Moisture Meter (8800)

  • Protimeter MMS2 Moisture Meter with Software Plus (8800-S)

  • Protimeter MMS2 Moisture Meter with Software HCase (8800-C)

  • Protimeter MMS2 Moisture Meter with Software HCase Plus (8800-C-S)

  • Protimeter MMS2 Moisture Meter with Software Restoration (8800-C-R)


Calibration is done by comparison to a Test Box, with reference to a NATA endorsed Report, to provide equivalent moisture values according to the manufacturer. Calibration is done in accordance with Reference Document LWI 34.

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