Wintact WT660 Probe Type Wood Moisture Digital Meter This is a DC resistance wood moisture meter (probe type) with four wood and three building material selection options. It is widely used for moisture content testing of wood, bamboo, paper, Chinese medicinal materials, and other wood fiber building materials. Features: 1. 4 levels for wood and 3 levels for building materials 2. Data lock 3. Low battery indicator 4. Automatic manual power off 5. Backlight display Parameters: 1. Accuracy: +- 2% (1 level) 2. Operating temperature: 0 degrees Celsius - 40 degrees Celsius 3. Temperature measurement range: 0 degrees Celsius - 50 degrees Celsius 4. Operating humidity: 20% RH-90% RH 5. Auto power off time: Approximately 5 minutes 6. Probe length: 9.8mm 7. Battery: 2 x 1.5V AAA batteries (not included) 8. Dimensions: 93.5 x 43 x 24.4mm 9. Weight: 44.8g Technical Parameters: Wood (resolution: 0.1%): Level 1: 6-39% Level 2: 7-48% Level 3: 8.5-55% Level 4: 9.5-65% Building Materials (resolution: 0.1%) Level 5: 0-7.9% Level 6: 0-8.5% Level 7: 0-15.2%