Price last checked Nov 5, 2026. It may have changed, so confirm on the store's page. We earn a commission on purchases (details).
Klein Tools ET140 Pinless Moisture Meter Klein Tools ET140 Moisture Meter is designed to non-invasively detect hidden relative moisture content up to 3/4-Inch (19 mm) depth. Easily select between materials with mode button to test surface of drywall, masonry, hardwood, and softwood. The ET140 has easy viewing with bright, reverse-contrast display and LED bar graph. Pinless Moisture Meter detects relative moisture from leaks and flooding, and measures relative moisture content in building materials Nondestructive detection of relative moisture content using Electromagnetic field (EMF) technology Select materials with mode button: drywall, masonry, hardwood, and softwood (Calibrated for these materials only) Detects relative moisture content up to 3/4-Inch (1.9 cm) deep Easy viewing with bright reverse-contrast display with nine LED bars to indicate relative moisture range Hold, Low battery, and Auto-Power off functions Built to withstand a 6.6 foot (2 m) drop Includes meter, 9V battery, and instruction manual Specifications Type: Pinless Moisture Meter Application: Calibrated for Drywall, Masonry, Hardwood, Softwood Only Special Features: Audible Alert, Auto-Power Off, Visual Notification Display Bright Reverse-Contrast Display and a Nine LED Bar Graph Display Resolution 0.10% External Electrode None Sensor Size 1.25'' x 2'' (3.5 x 5 cm) Sensing Depth 0.75” (1.9 cm) Moisture Reading Range 0 to 100% Accuracy +/-4% Measurable Materials Drywall, Masonry, Hardwood, Softwood Batteries 1 x 9V Drop Protection 6’6 (2 m) Included Moisture Meter; 1 x 9V Battery; Instruction Manual Material ABS Plastic Overall Length 6'' (15.2 cm) Overall Height: 1'' (2.5 cm) Overall Width: 2.5'' (6.4 cm)