1) Brief introduction: this instrument is a professional moisture meter, wildly used to measure the 2) water content of wood and building materials, also can be used to measure the air temperature 3) Sensor: electrical resistance (conductivity measurment) NTC temperature sensor 4) Parameters: The percentage of water content: % (wood, building materials) 5) Air temperature: °C /°F 6) Measuring ranges: material moisture 7) Material One 9.0 to 54.8% (Beech, Spruce, Larch, Birch, Cherry, Walnut) 8) Material Two 7.3 to 47.9% (Oak, Cedar, Maple, Ash tree, Douglas Fir, Meranti) 9) Material Three 1.0 to 22.1% (Cement, Concrete Plane, Plaster Produce 10) Material Four 0.0 to 11.0% (Anhydrite Plane) 11) Material Five 0.7 to 8.5% (Cement Mortar) 12) Material Six 0.5 to 9.8% (Lime Mortar) 13) Material Seven 0.0 to 16.4% Brick 14) Temperature: -10 to 50°C; 14 to 122°F 15) Resolution: 0.1%; 0.1°C; 0.1°F 16) Accuracy: ±2%; ±1°C 17) Sampling rate: 0.5s 18) Operation condition: -10 to 50°C; 14 to 122°F; 10 to 90%RH 19) Storage condition: -20 to 60°C; -4 to 140°F; 10 to 75%RH 20) Power supply: 3 x 1.5V AAA battery (not include) 21) Size: 14.2cm x 5cm x 2.2cm