4 PIN DIGITAL MOISTURE METER DAMP DETECTOR TESTER Description:This simple to use Digital Moisture Meter is ideal for measuring the moisture content of fire wood, plaster, walls, boats, caravans, timber, bricks, concrete, sawdust, wood shavings and other materials. Accurate measurements are very quickly taken and displayed on a large LCD display where they can be held.Moisture Content MCThe majority of materials which have a moisture content (MC) do so because they are porous.This is true for Wood, Brick, Plaster & Concrete, all of which are suited perfectly to this meter. Due to this their MC is directly affected by the relative humidity of the surrounding air. As relative humidity increases, so does the moisture content in these materials, this should be taken into account when taking measurements.Fire Wood - A MC of 20% or le means the wood will burn efficiently. Wood with a MC of 20% will release up to 50% more heat then wood with a MC of 30%.Brick - According to BRE Good Repair Guide a MC of 20% is a typical action point for masonry brick.Plaster & Concrete - A MC of 0-7% is ideal, though wall MC can vary over a day, season or location between 0-20%.FeaturesMeasurement Range:0-40%Resolution:0.1%Data HoldOperating Temperature:0 - 40CStorage Temperature:-10 0 50CInfluence of humidity: