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Product Description
Tramex MRH III (MRH3) Tramex Moisture & Humidity Meter
Moisture testing of wood, drywall, masonry, roofing and other construction materials
Deep signal penetration up to over 1" into the materials being tested without the need to damage the surface

The Tramex MRH III Moisture and Humidity Meter is a hand-held digital moisture meter calibrated for most building materials. It also attaches to an optional plug-in Tramex Hygro-i2 ® relative humidity probe and heavy-duty pin type electrodes. Suitable for many industries including Water Damage 
Restoration, Flooring, Indoor Air Quality, Home Inspection and Pest Control.

The MRH III operates on the principal of non-destructive impedance measurement. Co-planar electrodes are fitted on the base of the instrument from which low frequency signals are transmitted into the material under test, measuring the change in impedance caused by the presence of moisture. This reading is translated by the instrument into a moisture content reading.


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Hygrometer Mode
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When the Tramex Hygro-i2 ® relative humidity probe is plugged into the MRH III, it automatically changes to Hygrometer Mode. The Tramex Hygro-i2 ® provides the ideal solution for measurements of ambient relative humidity, temperature and dew point conditions within the building structure and in structural materials such as concrete flooring, walls etc.


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Features
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  • Digital, non-destructive moisture meter.
  • Deep signal penetration to over 25mm (1") into the materials being tested without the need to damage the surface. Signal penetration depends on material being tested and meter setting.
  • Specific gravity adjustment for wood species.
  • External Rubber electrodes make direct contact with the material being tested for best sensitivity and repeatability.
  • Wide range of readings for wood of 5% to 30% and 0 to 100 comparative for all other materials.
  • Backlit, large, clear, easy to read LCD display.
  • “Hold” function enables user to "freeze" the reading. Useful for taking readings when the meter face is not visible.
  • Switchable "On" or "Off" audio warning tone.
  • Automatic power cutoff switches "Off" when not in use.
  • Automatic default to last user setting when switched back on.
  • Battery operated (included).
  • Attaches to plug-in wood probe (optional).
  • Attaches to plug-in Tramex Hygro-i2 ® relative humidity probe for relative humidity, temperature, dew point and mixing ratio readings (optional).


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Specifications
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Size6" x 3.5" x 1.5" (150mm x 85mm x 38mm)
Weight8.47oz (240g)
ConstructionABS
Body Power9 volt PP3
Battery Included
DisplayDigital / Backlit Depth of penetration: up to 1¼"(30mm)(In wood, drywall)
Reference scale for building materials0 to 100
Relative Humidity (with optional Hygro-i2 ® probe)0 to 99%
Wood Non-invasive Mode5 to 55% MC (at SG of 0.3)
Wood Invasive Mode (with optional wood pin probes)7 to 40%MC


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Related Products
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Tramex BSIZK5.1
Building Survey Inspection EZ Kit

  • This complete moisture and humidity testing kit features the multifunctional Tramex MRH III digital moisture meter allowing for non-invasive testing of moisture conditions in numerous building materials such as drywall, wood, plaster, brick, ceramic tiles, resilient flooring, laminates and roofing
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Tramex FMK5.1
Flooring Master Kit

  • The ultimate kit for pre- & post-application moisture testing of concrete slabs, wood and various other floor covering materials
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Tramex RHP-LW
Hygro-i 320mm Long RH Probe, for use with MRH III & CMEX II

  • Hygro-i Long RH Probe, for use with MRH III & CMEX II
  • Providing readings of RH, Temperature, Dew-Point & GPK all on one screen
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Tramex HPW
Hole Punch

  • For creating pilot holes for long pin probes in EIFS & Roofing Systems.
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Downloads
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Tramex MRH III Moisture & Humidity Meter - Quick Guide
Tramex MRH III Moisture & Humidity Meter - Instruction Manual
Tramex MRH III Moisture & Humidity Meter - Data Sheet
Tramex Moisture Meters - Accessories

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