Digital 3in1 Decibel Sound Meter — Indoor Wall-Mount Temperature & Humidity Tester, Accurate Readings

This 3in1 digital detector provides precise decibel, temperature and humidity measurements for indoor wall-mounted use. It features an auto-calibration function to maintain accuracy over time. The display brightness is manually adjustable so you can set screen visibility to your preference. An intuitive, color-coded screen with expressive icons conveys the environmental quality in a realistic way. The large display ensures readings are easy to see, and a high-capacity battery delivers extended operating time.