The Professional Pin-Type Moisture Meter is a handheld instrument designed to take precise measurements of moisture content in wood and wood products. The professional works on the principle of DC resistance., when the electrode pins are pressed into the wood, the electrical resistance between the electrodes is measured and indicated on the digital display. The level of resistance is accurately measured by the instrument, which translates it into a percentage of dry weight moisture content. The Professional gives moisture readings from 6 to 44%. It should be noted that readings above 27% (nominal value of fibre saturation point) are indicative only. Readings are given to the nearest 0.1%.