Package BW-B


To keep close tabs on moisture in wood and humidity in air during production, flooring installations, inspections and water damage repairs. Ligno-DuoTec BW can be used as dual-depth, pinless meter and thermo-hygrometer for RH, Temp, DewPT, GPP.


One meter for 2 important tasks. Measures wood in percent, quick and easy with dual-depth selection for 1/4″ and 3/4″ deep. Works also great for engineered products, sub floors, bamboo and a wide range of building materials.

Lignomat’s RH BluePeg probe is an accurate RH probe with a short response time. The probe can be connected with a cable for remote readings or extended with the depth adapters DA. In addition, accessories are available for the Ligno-DuoTec BW meter and RH BluePeg probe to perform in-situ RH concrete moisture testing in compliance with ASTM F2170.


Item Number: BW-B


Product Description

The BW-B package features a pinless dual-depth meter for a wide variety of materials and a fast-responding, precision thermo-hygrometer. The hygrometer indicates relative humidity, ambient temperature, dew point temperature and grains per pound.

The package BW-B consists of:

Click here for details.

The Ligno-DuoTec BW meter with RH Thermo-Hygro probe measures moisture in wood and many other materials and the relative humidity of air. These two measurements are set into a relationship with each other in the EMC table, which shows values for stable conditions of wood moisture and relative humidity. The table can be used for materials other than wood, when the wood moisture equivalent is known.

The Ligno-DuoTec BW is a dual-depth, pinless meter and a Thermo-Hygrometer. It has a wide measuring range with 90 correction settings for measuring domestic and tropical wood species, bamboo, subfloors and engineered flooring products, gypsum and different types of wall boards. Relative scales are included for concrete (ASTM F2659), cementitious materials and different types of panel products.

A connector for RH cables or RH adapter are installed in the top of the meter.
The 3.5mm stereo connector gives a fail-proof easy connection.
Two measuring plates for pinless dual-depth mode are mounted on the back of the meter.

Pinless Measurements
Lignomat’s unique pinless measuring technology assures calibration accuracy, reliability and dual-depth measuring capability, measuring depth 1/4″ and 3/4″. The meter indicates wood moisture in percent, corrected for 150 different settings. Specific gravity can also be entered to correct for different wood species, settings between 30-100 (0.3 – 1.0). Comparative readings can be obtained for all other moisture sensitive materials. Concrete can be measured in scan mode with setting #25 following ASTM 2659.

A pinless advantage: Pinless meters from Lignomat measure lower moisture contents than pin meters. A feature specifically valued by the flooring industry in areas with low relative humidity and high desert climate zones.

To activate the RH mode, plug the RH Thermo-Hygro probe into the top of the meter.

RH Measurements – Thermo-Hygrometer 
The Ligno-DuoTec BW has a 35mm stereo jack mounted in the top of the meter to connect the RH BluePeg probe to the Ligno-DuoTec BW. First plug the Adapter H into the connector at the top, then the RH BluePeg probe fits into the Adapter RH.

As soon as the connection is established, the Ligno-DuoTec BW automatically switches into RH mode. When the READ button is depressed, the meter immediately indicates the relative humidity. The up or down keys allow recalling the values for ambient temperature, dew Point temperature and grains per pound (RH, Temp, DewPT, GPP). The display indicates the measured values and the RH Probe number. The RH probe number is an individual 3-digit number to allow keeping track of probes measurements and performance.

RH Adapters and Cables
The Adapter comes with 3.5mm stereo plugs (male) on both ends to connect Lignomat’s RH BluePeg Probe directly to the Ligno-DuoTec BW. A RH cable 6 ft for remote measurements is included with the package BW-B. The cable is used when the probe at the meter cannot reach the area or when the display cannot be seen, while measuring a tight spot. Upon request we make longer RH cables.

The distance from the top of the meter to the end of the probe is 2.25″ including the RH adapter. If that is too short to reach into heat ducts, walls and other small crevices, the shaft of the probe can be extended with the RH depth adapter.

Specifications RH BluePeg Probe – accurate and fast responding
RH: ±2% (10-90%), ±3% below 10%, above 90%
T: ±0.5°F (32-120°F) , ±1°F (5-32°F and 120-160°F) Response time 8 sec.
Resolution for RH and T: 0.1% and 0.1°

Note: Off-the-shelf thermo-hygrometers usually come with an accuracy rating of  ±5% for relative humidity and  ±2°F for temperature.


Choose package V-B with Ligno-VersaTec, if you are looking for a pin – pinless – RH meter.

Add sleeves and RH-CC cable for RH in-situ moisture testing of concrete slabs. System complies to ASTM F2170. Package BW-KS

More info on in-situ probe testing
More info on Lignomat’s RH in-situ probes

For more information, please contact Customer Service at 1-800-227-2105.

Lignomat USA Ltd, 14345 NE Morris Ct., Portland OR 97230, USA,

Package Includes

Ligno-DuoTec BW

Pinless – RH. Meter comes with a connector for Lignomat’s RH probe. Manual, laminated species card, battery and a pouch with belt loop.

The Ligno-DuoTec BW has 71 correction settings for specifc gravities from 0.3 to 1.0, bamboo corrections and sheetrock scale plus reference scales for 3 sensitivity levels. Dual-depth capability for ¼” and ¾” deep.

RH Thermo-Hygro Probe

RH Thermo-Hygro Probe consists of one RH BluePeg Probe and the RH Adapter ready to be connected to the RH meter or data logger using the easy-connect 3.5mm stereo plug.

RH adapter can be replaced by RH-C cable (6 ft) for remote measurements

RH Cable

Cable is used to connect RH BluePeg probe to a RH moisture meter or data logger for remote measurements. Ideal for monitoring hard to reach places where moisture may be trapped.


Pouch comes with a strap.
Fits Ligno-DuoTec BW and RH Accessories.