A moisture meter is one of those instruments that looks simple until the reading is wrong. A wood-scale number taken as a concrete result, a pinless pad used on a material it was not built for, or a single spot check treated as a dry-down decision costs more in callbacks than the meter ever saved.
This is a buying and use guide for Australian restoration, flooring and building professionals. It covers what a moisture meter is, when a pinless moisture meter is the right tool, when timber and concrete need different instruments, and what to check before you put one on the van.
It is not a substitute for the drying plan, a flooring standard, or the insurer’s scope. Match the meter to the material, take comparative readings, and treat a number as evidence — not as a finished report.
What a moisture meter actually is
A moisture meter estimates moisture in a material. It is not a thermal camera, and it is not a drying protocol. The same trade name covers several instrument types: a pinless moisture meter that reads through a finished surface, a timber moisture meter with a wood moisture-content scale, and a digital moisture meter built for concrete slabs.
You will also see it spelled moisture metre on Australian quotes and scopes. Same instrument class. What matters is the method and the material, not the spelling on the purchase order.
Wood moisture content, a comparative reading in a wall, and an in-situ concrete relative-humidity test are different jobs. One handheld will not do all three unless it is built for those methods.
Pinless moisture meter vs pin probes
Pin meters drive electrodes into the material. They are useful when you need a confirmation reading in wood and the job allows a hole. They also mark the surface. On a finished floor, a painted wall or an occupied house, that mark is a problem.
A pinless moisture meter is non-destructive. You place the pad on the surface. There are no pins damaging the finish. That is why pinless instruments are the usual first pass on restoration surveys.
A pinless meter reads through the layers in front of the sensor. The ME5 is listed as reading through paint, wallpaper, flooring, tiles and roofing materials. A high reading tells you the area is wetter than a dry reference on the same material. It does not, by itself, tell you which layer is wet.
Use pinless to survey and map without damage. Use pins when the scope allows an invasive check in wood. Do not treat a pinless wood-scale reading as a concrete specification.
Timber moisture meter: wood is its own scale
A timber moisture meter reports moisture content on a wood scale. That is a different number from a comparative reading in plasterboard or a concrete result.
The Moisture Encounter ME5 listed later in this guide has a wood scale of 5–30% MC. That is the range to work inside on wood with that instrument. It does not make the ME5 a concrete meter.
Read a timber result against the species, the finish and the job specification — not against a number you remember from another site. If the work is timber floors, framing or joinery, you want an instrument that actually has a wood function. If the work is a slab, you want a concrete method.
Digital moisture meter for concrete and slabs
Concrete is not wood. A digital moisture meter built for slabs is a different instrument.
Non-destructive concrete meters take a comparative reading in the top of the slab. The CMEX 5 listed below tests concrete about 20 mm (3/4″) into the slab. That is a near-surface reading. It is not a core through the full thickness, and it is not an in-situ RH test unless you add the sensor the method requires.
In-situ relative humidity is a different method. ASTM F2170 uses RH sensors in drilled holes. The CMEX5 has a bayonet port for optional Hygro-i2 RH sensors for that work, and for optional wood pin probes. The built-in hygrometer reads ambient RH, temperature, dew point and mixing ratio — useful for the room, not a replacement for the in-slab sensor.
Some flooring specifications call up ASTM F2659 (comparative, non-destructive) and some also call up the British standards BS8201, BS8203 and BS5325. Match the instrument and the probe to the standard you are working to. A comparative pad reading is not an F2170 result.
Where a moisture meter earns its keep
The use should drive which meter you pick up and how you record the result.
On water-damage work, a moisture meter is how you find the wet, map it, and come back to check that the assembly has moved. Thermal imaging can show a temperature pattern. A meter reading on the actual material is what you hang a drying decision on. Work comparatively: a dry reference on the same material, same meter, same method, then map against that reference. A single number with no dry control is a weak record.
The ME5 is specified to detect moisture in drywall, plaster, roofing, tile and masonry, and to read through the finishes listed earlier. That is survey work — ceilings after a roof leak, walls behind a burst, wet tile, masonry that has taken water. Compare like with like. A wet plaster reading is not explained by a dry timber control across the room.
On flooring, the meter has to match the method in the specification. Comparative non-destructive readings, in-situ RH, timber moisture content and a surface temperature check are different steps. The Flooring Inspector Kit later in this guide is built as a set for that mix. A timber moisture meter earns its keep on floorboards, skirtings and framing. Pinless avoids marking a finish you are not replacing. A heavy-duty wood pin probe is the confirmation tool when the scope allows it.
What to look for when you buy a moisture meter
Ignore generic “professional digital” packaging. Check the instrument for the features that match the work.
Material you actually test. Wood, drywall and building assemblies are one job. Concrete slabs are another. Buy for the material that decides your reports.
Pinless vs pin. Pinless if you must not damage the surface. Pins if you need an invasive wood check. Both, if you do survey and confirmation on the same jobs.
Wood scale, if you test timber. Look for a stated moisture-content range. On the ME5 that range is 5–30% MC. If the label does not state a wood scale, do not assume one.
Concrete method and depth, if you test slabs. Near-surface comparative (about 20 mm on the CMEX5), gravimetric baseline, Carbide Method equivalent, ASTM F2659. In-situ RH is a probe and a standard (ASTM F2170), not a pad reading.
App and kit. Bluetooth to an app that stores maps, reports, geotags and photos is how a survey becomes a record. A meter on its own is enough if you only do one method. Flooring inspection usually needs the meter, the RH probe, a wood pin probe and a way to take surface temperature. A built-in hygrometer is useful on occupied drying jobs. It is not a slab RH test.
Three options at Restoration Warehouse
Restoration Warehouse stocks three Tramex options in this class. They are not interchangeable. Choose on material and method, not on which one looks most digital.
Moisture Encounter ME5
Tramex Moisture Encounter ME5. It is a non-destructive / pinless moisture meter for wood, drywall and other building materials. Wood scale 5–30% MC. It detects moisture in drywall, plaster, roofing, tile and masonry, and reads through paint, wallpaper, flooring, tiles and roofing materials. Dual-depth scanning: shallow up to 9 mm, deep up to 30 mm. Pinless — no pins damaging the surface. Bluetooth to the Tramex Meters App for maps and reports, with geotag and photos.
That is the survey instrument for walls, ceilings, roofing and timber when you need a pinless pass.
CMEX 5 Digital Concrete Meter
Tramex Concrete Moisture Encounter CMEX5. It is a non-destructive digital concrete moisture meter. Built-in hygrometer: ambient RH, temperature, dew point and mixing ratio. Bayonet port for optional wood pin probes or Hygro-i2 RH sensors (ASTM F2170). Tests concrete about 20 mm (3/4″) into the slab. Gravimetric baseline. Carbide Method equivalent for concrete and anhydrite, plus a comparative scale for gypsum screed. Comparative readings to ASTM F2659.
That is the slab instrument. Add the Hygro-i2 if the specification is in-situ RH. Add a wood pin probe if you also need an invasive timber check on the same visit.
Flooring Inspector Kit
Tramex FIK. Order code FIK. Includes the CMEX5, a Hygro-i2 probe, a heavy-duty wood pin probe, an infrared thermometer, hole liners, an extension handle and a heavy duty Tramex travel case. App connectivity. Standards listed on the kit: ASTM F2659, ASTM F2170, BS8201, BS8203, BS5325.
That is the set if flooring inspection is the work — comparative slab readings, in-situ RH, timber pins and a surface temperature check in one case. It is not required if all you do is pinless wall surveys.
Check each listing for current price, stock and full specifications before you order.
How to use it on site without fooling yourself
Use the same meter, the same scale and the same material for every comparison on that job. Do not mix a wood percentage with a concrete comparative number in the same sentence of a report. Map, do not only spot-check. If the instrument talks to an app, use the maps, geotags and photos.
On concrete, follow the standard you are working to. ASTM F2659 is comparative and non-destructive. ASTM F2170 is in-situ RH with the right sensor in a lined hole. A pad reading is not an F2170 result.
On finished surfaces you are not replacing, start pinless. Pins damage the surface. Use them when the scope allows an invasive timber check, not as a habit. A moisture meter is a measuring instrument. It is not a licence to skip the specification named in the scope.
Put the right moisture meter on the van
A meter fails at the same moment you need it — first inspection after a leak, a slab the layer is waiting on, a callback with no location on the reading. Treat it as kit, not a tool you borrow between jobs.
For current availability, probes or a kit versus a single instrument, call 07 3568 4925, email sales@restorationwarehouse.com.au, or visit restorationwarehouse.com.au.
