4-in-1 Diemmern 11" LED Decibel Meter — Sound Level 30~130dB, Thermometer + Hygrometer + Clock, 2000mAh, USB 10 ft

All-in-one noise monitor with large 11" LED display and dimmable brightness. This Diemmern decibel meter combines a noise meter, thermometer, hygrometer and clock in a single wall-hangable or desktop unit for convenient environmental monitoring at home, office, classroom, studio, factory or construction site. High-precision sensing: An intelligent air semiconductor sensor provides sensitive, stable and accurate readings for sound, temperature and humidity. Sound measurement covers 30~130dB with ±1.5dB accuracy and a frequency response of 50Hz~8.5KHz. Humidity is measured across 20~85% with ±5% accuracy. Temperature range is 14~122 with ±5% accuracy. User controls and modes: The display brightness can be raised or lowered using the brightness buttons. Press "M" to switch detection speed between three gears (fast, medium and slow); long-press "M" to set the clock/time. The unit is ready to use out of the box and features adjustable detection speed to suit different monitoring needs. Power and placement: Built-in 2000mAh lithium battery provides portable operation and the package includes a 10 ft USB charging cable for flexible placement and easy recharging. Applications: Ideal for noise engineering, product quality checks, health & safety monitoring and general sound-level control. Hang it on the wall or place it on a table to continuously monitor environmental conditions. Support: If you encounter any problems, please contact us and we will respond and resolve the issue as soon as possible.