Hardwood Moisture Meters

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General Information 

Professionals within the Hardwood Industry understand the damage created by Moisture and Humidity in-balances on Hardwood Floors. Having a good calibrated Moisture Meter and a Digital Hygrometer are a must.  Hardwood installers, distributors, manufacturers and inspectors know that moisture is wood’s worst enemy.  Wood is a hygroscopic material; i.e. wood absorbs and releases moisture. When humidity increases, or moisture builds up, wood absorbs water and therefore swells and expands causing cupped floors, possible delamination and buckled floors. Dimensional stability is thus affected. Dry environments with not enough moisture (electric heating in winter) will cause gaps between boards and dimensional stability will also be affected.

WOOD Moisture Content or “MC” is the amount of water weight in wood, compared to the amount of dry wood. Both “Pin Moisture Meters” and “Pinless Moisture Meters” measure MC%. Pin Moisture Meters are invasive and leave small pin marks. Pinless Moisture Meters are non-invasive and leave no marks at all. Pin Moisture meters are less expensive but slower to measure a large area. Both Pin and Pinless Moisture Meters need to know what species of wood is being measured.  Once you have chosen a type of meter.  Some meters also come with different displays such as Analog or Digital.  Analog display is a pin moving back and forth infront of a background labelled with percents, they have 3 areas; green, yellow, and red indicating good, okay, and bad levels of moisture content.  Digital displays, display numbers usually from 0-100 which can give you an exact number usually to one decimal place, depending on the meter.   

CONCRETE Moisture Content or “MC” is the amount of water weight in concrete, compared to the amount of dry product. CONCRETE Relative Humidity is another method used to analyze the amount of water vapour in Concrete. Either “Moisture Percentage Moisture Meters (CMEX2)” or “Concrete Relative Humidity Moisture Meters” will provide information on how dry the concrete is. Moisture Meters with Relative Humidity Sensors are invasive and leave holes in concrete. Determining the RH of concrete or Relative Humidity of concrete takes more work but is more accurate. RH sensors are placed into the concrete for 72 hours and are then read. On the other hand Non-invasive Moisture Meters leave no holes at all and are quick and easy to measure large areas of concrete. 

Relative Humidity is defined as the partial pressure of water vapour to the saturated vapour pressure of water at a given temperature, i.e. the amount of water in the air compared to the maximum amount of water that can be held at that temperature. Hygrometers and Psychrometers measure Relative Humidity “RH”. Hygrometers can be purchased at your local hardware store for $4. These are somewhat inaccurate and very slow in response. Professionals use accurate fast acting Psychrometers that can be calibrated if need be precisely to 33% and 75%. Hygrometers and/or Psychrometers both measure “RH”, Relative Humidity. Hardwood floors in Canada should be kept within a relative humidity range of 30-50% RH and at temperatures of 15 to 26˚C. At such levels hardwood floors installed in Canada will fall within an “EMC”, Equilibrium Moisture Content of between 6 to 9% “MC”, Moisture Content measured in %.

Both a pin or pinless moisture meter and a digital psychrometer/hygrometer are mandatory and will help in eliminating problems if used correctly. To eliminate problems, follow some basic rules such as acclimate or equilibrate the wood permitting the wood to become in equilibrium to a new moisture level while at normal ambient conditions where it will be installed for several days. Then measure the moisture of the subfloor and of several pieces of hardwood from various cartons that have been racked. Record your results. The maximum MC difference shall not exceed 4% approximately for strip flooring. If over concrete, measure the Concrete MC or Concrete RH using ASTM rules prior to installing the hardwood.

Calcium Chloride tests are still in use in North America and are a more economical way of testing moisture levels in concrete if you do not do this often

ASTM F2170-11             RH In-situ Concrete Testing (drilling + 72 hr.)

ASTM F1869                  Calcium Chloride Test, Vapour Emission Rate

ASTM 2659                    Non Destructive Concrete Testing “CMEX2”

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Delmhorst 26-ES, 26-ED 1-1/8" Insulated Pins (4) for 26-ES Electrode

Used on 26-ES with 1-1/8" penetration

MIZA Digital Hygrometer Psychrometer

Triple Display shows Percentage Relative Humidity, Dew Point and Temperature

Wagner MMC220 Wood Moisture Meter Extended Range

Wagner's MMC220 Pinless Wood Moisture Meter, for both exotic and domestic wood species. 7 year mfr. warranty.

Wagner MMI1100 Data Collection Wood Meter

Wagner MMI1100 Pinless Data Collection Wood moisture meter for exotic and domestic species, stores 50 readings, with amazing 7 year warranty.

Delmhorst HT-4000 Thermo-Hygrometer

Advanced GPP, RH and Temp. with the added advantage of a Replaceable Sensor

Delmhorst Navigator Pro Moisture Meter

3-in-1 technology and advanced job definitions for organized readings

Delmhorst Navigator Pro Moisture Meter Basic Package

Comes with software to download your readings onto you computer

Delmhorst ProScan Wood Moisture Meter

Designed for the Wood Industry non-Invasive Measurements for SG 0.3 to 0.8 species

Delmhorst RH/T-S3 Concrete RH-T Sensor for TotalCheck and HT-4000 QTY:5

Measures Relative Humidity in Concrete

Delmhorst TechScan Moisture Meter PRO

Freeze readings in Hard to reach places with our Hold button feature

Delmhorst TotalCheck Moisture Meter

TotalCheck for Hardwood Inspectors, Advanced Contractors, Quality Flooring Specialists

Delmhorst TotalCheck Moisture Meter Flooring Package

Starter Pkg for Hardwood Installers with advanced pin/scan/RH meter. C/W Hammer Probe, PC Link, one Relative Humidity Sensor, Sleeves & Hard Case

Delmhorst Wood J-2000 Moisture Meter

Simple Low Cost Pin Meter w/48 species for Hardwood Installation

Delmhorst Wood J-2000 Moisture Meter, Hammer Electrode Package

Perfect Package for Woodworkers, Sawmills and General Contractors

Lignomat Mini Ligno DX/C Pin Moisture Meter

Easy to use Moisture Meter for Wood, Bamboo, Sheetrock

Lignomat Scanner S Moisture Meter

1/4" Pinless meter

Lignomat Scanner SDM Dual Depth Moisture Meter

Dual Depth 1/4" + 3/4" Pinless meter with Bamboo scales

Lignomat VersaTec 3-in-1 Moisture Meter, Hand Probe Package

Comes with E14 Hand Probe to Enable Pin Mode

MEP Calibration Check Box

Calibration Check Box for MEP

Merlin Hardwood Flooring and Furniture Moisture Meter HM9-WS13

NEW Merlin HM9-WS13 for Hardwood Flooring and Furniture
$334.99 $281.99

Merlin HM8-WS1 HD Veneer Moisture Meter for Exotics

The Merlin HM8-WS1 HD is specifically made to measure Single Sheets of Veneer around 1-2 mm or the top layer of engineered Exotics & North American hardwoods.
$487.99 $350.00

Merlin non invasive ECO 10 HD Wood Moisture Meter

ECO 10 HD Measures moisture non invasively in High Density Wood from 450-950 kg/m³
$280.00 $299.99

Merlin Non Invasive ECO 10 Wood Moisture Meter

Pinless Moisture Meter Measures Standard Density Wood from 370-670 kg/m³
$280.00 $181.25

MRH3 Calibration Check Box

Calibration Check Box for MEP
$82.00 $74.00

Tramex Calibration Check Plugs

Calibration Check Box for MEP

Tramex Hammer Probe

Hammer Probe for use with Tramex meters.

Tramex MEP Moisture Encounter Plus Moisture Meter

"Home Inspectors #1 Meter for Moisture" Long time winner for simplicity and accuracy.
$470.00 $423.00

Tramex MRH3 Moisture Meter

Tramex MRH3 Pinless meter with Optional Pin and RH Probes
$575.00 $518.00

Tramex PTM 2.0 Professional Pin Wood Meter

NEW Digital Tramex PTM 2.0 pin meter with 500+ wood species & Drywall, 100 Memory, Color Screen, 3 point Calibration built-in, Statistics & more
$390.00 $351.00

Delmhorst TotalCheck Moisture Meter Concrete Package

Starter Pkg with one ASTM F-2170 RHT Sensor, Cable, 10 Sleeves & HardCase

Wagner Professional Flooring Installer Package - Fahrenheit

Includes MMC 220 Pinless Wood meter, Rapid RH 4.0® Easy Reader, Bluetooth® Smart Reader, 5 Smart Sensors, 3/4" SDS Masonry Drill Bit, Wire Cleaning Brush, Vacuum Attachment, IR Thermometer, TH-200 Thermo-Hygrometer, Foam-Lined Carrying Case

Wagner Rapid RH 4.0® °F EX Complete Starter Kit

The Wagner Starter Kit Rapid RH 4.0 - 5 Sensors, Easy Reader, Masonry Drill Bit, Wire Brush, Vacuum Attachment, Inserter, 2 Dataloggers and Carrying Case

Wagner Rapid RH 4.0® EX - Easy Reader - 5 Smart Sensors - Fahrenheit

The Wagner Rapid RH Starter Kit and Easy Reader includes 5 Smart Sensors, Rapid RH 4.0 Easy Reader (°F Version), Liners and Caps

Wagner Rapid RH 4.0® EX - Smart Sensor 100 Pak

Includes 100 Rapid RH 4.0 ® EX Smart Sensors, Extenders and Caps.

Wagner Rapid RH 4.0® EX - Smart Sensor 5 Pak

Includes 5 Pak Rapid RH 4.0 ® EX Smart Sensors, Extenders and Caps.

Wagner Rapid RH 4.0® EX - Smart Sensor 50 Pak

Includes 50 Pak Rapid RH 4.0 ® EX Smart Sensors, Extenders and Caps.

Wagner Rapid RH Easy Reader - Celsius

Wagner Rapid RH Easy Reader - Celsius

Wagner WFP200 Concrete Flooring Package - Fahrenheit

Includes 5 Smart Sensors, Rapid RH 4.0® Easy Reader, Bluetooth® Smart Reader, 3/4" SDS Masonry Drill Bit, Wire Cleaning Brush, Vacuum Attachment, Carrying Case

Wagner WFP400 Professional Flooring Installer Package - Celsius

The WFP400 Professional Flooring Package includes the MMC220 Pinless Wood moisture meter, the Rapid RH 4.0® Easy Reader, Bluetooth® Smart Reader, 5 Smart Sensors, a 3/4" SDS Masonry Drill Bit, a Wire Cleaning Brush, Vacuum Attachment, IR Thermometer, TH-200 Thermo-Hygrometer, and a Foam-Lined Carrying Case

Tramex Water Damage Restoration EZ Kit

Includes: -CME4 non-destructive, instant concrete moisture meter. -MEP non-destructive moisture meter for general building materials. -Easy travel case.

Flooring Inspection Kit - includes CMEX 2, 3 Hygro-i Probes, HH14TP30, IRTX, SAL75, and 12 hole liners

Flooring Inspection Kit - includes CMEX 2, 3 Hygro-i Probes, HH14TP30, IRTX, SAL75, and 12 hole liners

Wagner Smart Logger 5 Pak Data Logger

5 Smart Loggers Bluetooth - Data Logger - Capture, record, and send up to 12,000 readings of ambient temperature and relative humidity.

Wagner Orion 930 Pinless Wood Moisture Meter

7 Year Warranty on the Wagner Pinless Wood Orion 930 Moisture Meter