3-in-1 Digital Noise Measuring Instrument — Decibel, Temperature & Humidity Meter for Indoor Use, Wall-Mount/Desktop with Auto-Calibration & Manual Brightness, Large Color Display

3-in-1 indoor detector that simultaneously measures sound level (decibel), temperature and humidity. Built-in auto-calibration keeps readings accurate over time. A large, easy-to-read display presents information clearly and allows manual adjustment of screen brightness. The unit features a multi-color expressive face that realistically indicates environmental quality. Designed for flexible placement — sit it on a table or hang it on the wall.