YT301 Non-destructive Inductive Moisture Tester 1. This non-destructive inductive moisture tester adopts electromagnetic induction detection technology, no need to drill or damage materials, with a maximum 19mm deep detection range and +-4% measuring accuracy for stable and fast readings. 2. It supports 4 switchable testing modes, compatible with plaster walls, brick masonry, softwood and hardwood, meeting moisture detection demands for construction and woodworking scenarios. 3. Equipped with a HD backlit LCD circular dial display, clear data readout in dark and bright environments; built-in data hold function to freeze measured values for convenient recording and viewing. 4. Built-in mini flashlight for lighting dim construction sites, plus visual LED color alarm and buzzer reminder, greenyellowred lights correspond to dry, moderate and wet humidity levels to quickly judge material moisture status. 5. Ergonomic portable handheld design with simple one-button operation, wide sensing panel for full contact measurement, compact body easy to carry for on-site building inspection and lumber testing. Technical Specifications 1. Measuring Range: Wood 5% to 75%, Wall 0.5% to 70% 2. Accuracy: +- 4% 3. Max Detection Depth: 19.00mm 4. Sensor Size: 40x40mm 5. Operating Temperature: 0 to 40 degrees Celsius (32 to 104 degrees Fahrenheit), applicable humidity 5 to 95%RH 6. Storage Temperature: -10 to 50 degrees Celsius (14 to 122 degrees Fahrenheit) 7. Power Supply: 3 x 1.5V AAA Alkaline Batteries (not included) 8. Size: 135.6 x 5.5 x 27.2mm 9. Weight: 103g