Moisture meter with prongs that imbed into the wood to give an accurate figure. Note if you are using for council testing all meters give a slightly different reading.
The Protimeter BLD5365 Dual-Function, versatile pin and non-invasive Moisture Meter is ergonomically designed for easy, one-handed operation to measure moisture in buildings and other related structures both on and below the surface. The Protimeter BLD5365 Surveymaster can help building professionals—such as contractors, surveyors, home builders and architects; Assess building moisture levels during new build and refurbishing activities.