Accurate Noise Level Monitoring: Our decibel meter uses a high-precision detection chip to continuously monitor noise levels, temperature, and humidity. Unlike traditional handheld devices that only measure environmental noise passively, our product allows for real-time observation, making it ideal for home use. Accurate Noise Level Monitoring Our decibel meter uses a highprecision detection chip to continuously monitor noise levels, temperature, and humidity. Unlike traditional handheld devices that only measure environmental noise passively, our product allows for realtime observation, making it ideal for home use. Designed for Home Use Equipped with a builtin 2700mAh lithiumion battery, this device is optimized for longterm use. Due to the high power consumption of the noise detection chip, we recommend keeping it plugged in for extended monitoring. A fully charged battery provides up to 50 hours of usage. High Precision Measurements Featuring advanced sensors that are more sensitive and accurate than standard models, this decibel meter measures noise levels from 30dBA110 dBA with an accuracy of 3 dBA. It also monitors humidity 095, 5 and temperature 14F122F, 2.7F. UserFriendly Operation This portable decibel meter is easy to operatesimply press and hold the O button to turn it on or off. A short press of the button switches between temperature units FC, while a long press of the button allows you to enter or exit the timer function. Versatile Applications Hang it on a wall or place it on a desk; this decibel meter is perfect for classrooms, studios, guitar rooms, bedrooms, homes, offices, and more.