"For fast and accurate wood moisture measurements on a large 1.4' LCD digital display. Battery Type 9V, Case Included Yes, Range Selection 9-30, Accuracy 4+5d at 9-24, Style Electrode pin style, Display Type LCD digital display, Dimensions L x W x H in. 7 x 3 x 1, Battery Included Yes, Resolution 0.1, Auto On/Off Yes. Built-in self-calibration Data hold Minimum/maximum record and recall In-the-field calibration Built-in RS-232 PC interface Memory contains 9 material groups including calibrations for approx. 150 species of wood"