Feature:1. Humidity range for wood detection is 6%~60%, humidity range for detection of building materials (gypsum board) is 1.5%~33%2. Indirectly measure the lamination rate of wood/building materials (gypsum board) by detecting the electrical conductivity of wood3. For wood, the conductivity is different. The screen displays the speed data of wood/building materials (gypsum board), the error range is within +/‑ 2%4. It will power‑off automatically in 3 minutes without operation. And it has 8 calibration scales(A,B,C,D,E,F,G,H), based on different types of wood materials5. Small in size, lightweight and portable, it can be easily held in hand to measure in various placesSpecification:Item Type: Wood Moisture TesterMaterial: ABSWood Measurement Range: 6-60%Wood type:A/B/C/D/E/F/G/HBuilding Material Measurement Range: 1.5%~33%Moisture Tester Display Resolution Rate: 0.1%Moisture Tester Accuracy: ±2%Moisture Tester Self-calibration Value: 18.6% at wood mode A typeTemperature Measurement Range: 0℃~50℃(32℉~122℉)Moisture Tester Display Resolution Rate: 0.1℃Moisture Tester Accuracy: ±2℃Moisture Tester Indicator Light: Wood: Green Light <12%,Yellow Light 12%~15.9%, Red 16%~60%. Building Materials: Green Light <17%, Yellow Light 17%~19.9%, Red 20%~33%Moisture Tester Buzzer Warning: (Red Light Position), Green Backlight Function: auto power-off in 3 minutes without operationlow voltage prompt: <2.2VWorking Current: <30mA at 3.0VWorking Environment Humidity: <85%RHBattery: 2 x AAA Battery(not included).Package List:1 x WoodMoisture Tester1 x Manual