KLEIN TOOLS Pinless Moisture Meter ET140 — Non-Destructive Moisture Detection, 3/4" Depth, Drywall/Wood/Masonry

If you need to find hidden wet spots after a leak, verify drying progress, or screen building materials for elevated moisture, the ET140 offers a fast, nonintrusive method. It uses electromagnetic field (EMF) sensing to read relative moisture through surfaces calibrated specifically for drywall, masonry, hardwood, and softwood. The unit’s bright reverse‑contrast display and nine‑bar LED graph make readings easy to interpret on job sites or in dimly lit spaces.

How does the ET140 detect moisture without pins?

The ET140 employs pinless EMF technology that senses moisture content beneath the surface by measuring changes in an electromagnetic field. Because it does not penetrate the material, the meter avoids leaving holes in finished surfaces and reduces the risk of secondary damage.

• Noninvasive sensing up to 3/4‑inch (19 mm) deep
• Calibrated modes for drywall, masonry, hardwood, and softwood
• Fast surface scans to locate wet areas and paths of moisture

What readouts and controls help interpret results on site?

Readings are shown on a bright reverse‑contrast LCD plus a nine‑bar LED moisture range indicator for quick visual checks. A single mode button switches material calibration, and built‑in hold, low battery, and auto power‑off functions simplify field use.

• Reverse‑contrast display for better visibility in low light
• Nine‑bar LED graph for at‑a‑glance moisture level indication
• Hold function to freeze a reading for documentation or comparison

What materials and depths can the ET140 assess?

The meter is programmed to provide relative moisture readings for drywall, masonry, hardwood, and softwood only; select the matching mode to get the intended calibration. Its sensing range reaches roughly 3/4‑inch (19 mm) below the surface, which is suitable for locating moisture near finishes and within common building materials.

• Drywall and plaster surfaces for leak and water‑intrusion checks
• Masonry like concrete and block for visible and hidden moisture
• Hardwood and softwood floors or framing for elevated moisture screening

What’s included and how durable is the meter for jobsite use?

The ET140 kit ships ready to operate with a 9V battery and instruction manual; the meter itself is engineered for professional use with drop protection and essential field features. Auto power‑off conserves battery life, and the low‑battery indicator helps avoid unexpected shutdowns during inspections.

• Complete kit: meter, 9V battery, and manual
• 2‑meter drop protection rating for everyday jobsite handling
• Auto power‑off and low battery alerts for reliable operation

Who is this for? The Klein Tools ET140 is aimed at tradespeople, building inspectors, restoration technicians, contractors, and homeowners who need a fast, non‑destructive way to locate and monitor moisture in walls, floors, and masonry. It’s useful for pre‑purchase inspections, post‑repair verification, leak detection, and routine building maintenance where preserving surface finishes matters.