Digital intelligent MCU paper moisture meter can work on 3 types paper (carton, copperplate paper, writing paper) through the spring contact precise measuring. Display: Large LCD display Range: 0-40% Resolution: 1% Operation temperature: 0℃～50℃ 20～90%RH Battery consumption: approx.7.5mA Power: 9V battery Dimension: 126×70×29mm Weight: Approx.82g(exclude the battery）