Ideal for cabinet makers, it is tough & hard wired for invariable accuracy. The wired circuits are for ±6% to 25%. accuracy of ±0.5% in the 6-11% range, 1% & 2% in higher ranges. temperature readings are within a 1% band over a 90 degree farenheit temperature change. Circuitry coated against moisture. Can be used for seasoning wood, equilibrium, shrinkage, gaging wood movement & wood rot. Can be used on most woods. Instructions, spare pins, battery & 2 year warranty.