The TESMEN TWM-186 is a compact, pen-style moisture meter built for fast, accurate moisture readings across a wide range of materials. Featuring two high-precision pins and a smart three-color display, it quickly identifies moisture content in wood, firewood, lumber, drywall, and construction surfaces.
Its portable size makes it the perfect tool for growers, woodworkers, inspectors, or anyone who needs reliable moisture data on the go. With two modes and seven calibration scales, the TWM-186 provides accurate readings from 0.0% to 58%, supported by a data-hold feature that keeps numbers stable while you inspect.
An auto-off function saves battery life, and the low-battery alert ensures you’re always ready to work. Includes batteries and a user manual so you can start testing right out of the box.
Use this meter on stems—not buds—when checking if your cannabis plants are ready to trim. When small branches snap instead of bend and the meter shows low moisture, your trim and cure will be much smoother.