Protimeter ReachMaster Pro Non-Invasive Moisture Meter
The ReachMaster Pro is a non-invasive moisture meter on a telescopic handle. The sensor head sits on a pole that extends to 114 cm and communicates wirelessly with a handheld display, so ceilings, high walls, roof spaces and under-floor areas can be scanned from the ground without a ladder.
Why the reach matters
Most ceiling moisture is found by someone standing on something. The ReachMaster Pro removes that step, which is a working-at-height reduction as much as a productivity gain. It also scans deeper than a standard non-invasive meter — up to 12 cm below the surface.
How to read it
Like all non-invasive meters, the ReachMaster Pro gives a relative reading rather than a moisture content percentage. Take a reference reading on known-dry material of the same construction, then compare. Metal behind the surface — mesh, foil-backed insulation, ducting, wiring — reads high on dry material, so confirm anything unexpected with a pin meter.
Specifications
| Measurement | Non-invasive, instantaneous readings. Not adversely affected by surface moisture |
|---|---|
| Maximum depth | Up to 12 cm below the surface, varies with material |
| Operating conditions | 0°C to 50°C |
| Display module | 50 mm graphical LCD, 176 × 220, adjustable backlight, user application profiles, retains last used settings |
| Power – sensor head | 2 × AA alkaline, with battery level on the display and a low indication on the sensor |
| Power – display module | 4 × AA alkaline |
| Gross weight | 700 g, instrument only |
| Regulatory compliance | CE, RoHS, ETL |
| Warranty | 24 months on the instrument. Excludes wear on accessories and consumables |
Applications
- Ceiling and high wall inspection without ladders or platforms
- Flat and rubber roof leak detection
- Large-area moisture mapping on commercial losses
- Sub-floor and crawl space scanning
- Fibreglass marine hull inspection
Maintenance — the abrasion plate
The sensor head is dragged across surfaces, so the face wears. Protimeter supplies a replaceable abrasion plate kit (BLD5777-A) for exactly this reason. Replacing a worn plate is a five-minute job; scanning on a worn-through head is not something the instrument recovers from. Keep a spare with the meter.
Frequently asked questions
Does it give a moisture content percentage?
No. It is non-invasive and gives a relative reading for locating and comparing. For a moisture content figure you need a pin meter such as the SurveyMaster or the MMS3.
How is it different from the Aquant?
The Aquant is a handheld non-invasive meter reading to about 19 mm. The ReachMaster Pro reads to about 12 cm and puts the sensor on a 114 cm telescopic handle with a wireless display. Different jobs.
Does the sensor head need to touch the surface?
Yes, it is a contact-scan instrument — that is why the abrasion plate is a wearing part.
How many batteries does it take?
Six AA in total: two in the sensor head and four in the display module. Carry spares of both.
Calibration
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
- ReachMaster Pro instruction manual (INS5777 Rev B, April 2020)
- ReachMaster Pro datasheet (AAS-920-767F, July 2020)
Scanning high ceilings or large commercial areas and unsure whether the reach or the depth is what you need? Contact Carpet Cleaners Warehouse before ordering.





