6-in-1 Rechargeable Decibel Meter with LCD — 30-130dBA Sound Reader, Temp/Humidity, PM2.5/1.0/10 Detection, 3000mAh

This multifunctional sound level meter is built around an intelligent air semiconductor sensor for faster response, improved sensitivity and greater measurement stability compared with conventional sensors. It measures sound, temperature, humidity and particulate levels across multiple ranges with the following specifications: sound 30-130dB (accuracy ± 1.5dB); humidity 20~85% (accuracy ± 4%); temperature 14~122℉ with switchable units ℃/℉ (accuracy ± 1.8℉). The unit also provides PM2.5, 1.0, 10 detector readouts and displays clock, date and battery status. A large 9.5x5.3cm/3.7x2.1in high-definition LCD shows several data points at once so you can monitor noise, temp, humidity and particulate readings simultaneously. Power comes from an internal 3000mAh lithium battery (rechargeable) and a USB cable is included. Typical runtime is 3-5 days with long standby — in normal use you generally only need to recharge about once a week. Operation is simple: long-press the power button to turn the device on or off; single press cycles to the next item; double press enters time/date setting; use the left/right arrows to adjust values. A paper user manual is supplied for quick setup. The compact meter can be set on a table or hung on a wall, making it suitable for noise engineering, product quality control, health monitoring, classrooms, studios, busy traffic corridors, factories, construction sites, homes, offices and other environments where accurate sound and air measurements are needed.