BOBOVAV Wood Moisture Meter - Pin Type, Portable 7-Material Calibration & 3-Color Alert, 0.0-58.0% Range ±2.0% Accuracy for Wood Logs Drywall Firewood Concrete Walls - Prevent Deformation & Peeling

BOBOVAV Decibel Meter Sound Level Reader, Portable with 30-130dB Range, 125ms Fast & 1s Slow Response Modes, A-Weighted, Max/Min Hold, Low Battery Alert, for Home, Factory, Classroom, Noisy Neighbors