How do I accurately use the Klein Tools ET140 Pinless Moisture Meter to measure moisture in different materials like wood and drywall?

[MacChase]

To effectively use your Klein Tools ET140 Pinless Moisture Meter for moisture measurement, follow these steps:

1. Powering Up Turn on the meter by pressing the Power On/Off button. The LCD will display the current mode.
2. Selecting Material Type Use the MODE button to cycle through the material options: Drywall, Masonry, Hardwood, and Softwood. Choose the appropriate setting for the material you are testing.
3. Scanning the Material Place the sensor of the meter against the material's surface. Ensure the back of the meter makes solid contact with a flat area for precise measurements. This device can effectively measure up to 3/4 inch (19 mm) thick.
4. Interpreting Readings The LCD screen displays the moisture content as a percentage. The Bar Graph also provides a visual representation using green, yellow, and red LEDs, which indicate moisture levels according to the manual's chart.
5. Understanding Error Messages The display will show "OL" if the measured moisture is outside the meter's range. An "ER" message indicates an unsupported material type. By following these instructions, you'll be well-equipped to use your Klein Tools ET140 to measure moisture accurately in various materials.