Apollo-Handheld Digital Wood Moisture Humidity Timber Damp Tester Detector Meter 4 Pins This instrument is stylish in appearance and high stable in performance. It is used to measure the containing water of wood. bamboo. cotton. tobacco. paper. foodstuff etc. Large size digital LCD display shows measurement in percentages Lightweight design for portability Data-Hold function for holding measuring values Measuring Range from 5% to 40%