Terrakelvin HM210 moisture meter promises to accurately detect moisture contents in all 119 lumber species: from softwoods, hardwood to pseudo-woods (Bamboo); from Ash to Zebra-woods. While many home inspectors carry this tool in their equipment bags, the average homeowners also rely on this pinless moisture meter for spotting and verifying hidden moisture buildup in homes. This product is guaranteed to meet or exceed the specifications. Factors such as superficial water, lo-battery, incorrect density setting, and wrong calibration may affect accuracy. ● TECHNICAL SPECIFICATIONS: ◆Moisture Range: 4 - 80%; ◆Accuracy: ±(1%Rh+0.5); ◆Resolution: 0.5%; ◆Operating Temperature Range: 14°F to 104°F, ◆Operating Humidity Range: 0 - 70%RH; ◆Auto Power-Off in 5 minutes without Operation. ◆Low Battery Indication. ◆ Moisture Over-the-Limit Alert