Decibel Meter 11in LED Display Wall Mounted Desktop Sound Level 30-130dB

Decibel Meter 11in LED Display Wall Mounted Desktop Sound Level 30-130dB Noise Tester Time Temperature Humidity for Home Studio Factory Classroom. 1 4 IN 1, LED DISPLAY: This large screen decibel meter features an 11in LED display with adjustable brightness and is equipped with a decibel meter. This means you will have a noise meter, thermometer, hygrometer, and clock, providing convenience for your work and life 2 ACCURATE AND STABLE: This sound level meter uses an intelligent air semiconductor sensor to measure decibel, temperature and humidity values. Compared with ordinary sensors, it is more sensitive, accurate and stable. The measurement range is 30 to 130dB, with an accuracy of 1.5dB, and the frequency response range is 50Hz to 8.5KHz. Humidity range from 20% to 85%, accuracy is 5%. Temperature range from 14 to 122 , accuracy is 5% 3 WIDE APPLICATION: This noise tester is an excellent tool for checking, monitoring or controlling and testing the sound level of any environment, and can be applied in noise engineering, product quality control, health prevention, etc. This large LED decibel display can be hung on the wall or placed on the table, which is a nice noise meter for testing sound levels in classrooms, studios, major traffic arteries, factories, construction sites, homes, offices, etc. 4 EASY TO USE: This smart decibel meter is always available. Click the up key to increase the brightness, click the up key to decrease the brightness, and click M to adjust the detection speed. There are three settings in total: fast, medium and slow. Double click M to adjust the time 5 CONVENIENT CHARGING: This decibel meter is equipped with a built in 2000mAh li battery power supply and a 10ft long USB charging cable. You can place it wherever you want and charge it anytime and anywhere 6 EXPORT DATA: Connect the device to the computer using the upcoming Type C data cable; Go and check the computer. Open(My computer), USB flash drive, and you will find a my data file, which is the historical DATA and records of the device

What's in the box
1 x Mainframe1 x User Manual1 x USB Cable1 x Installation Sticker2 x Screws2 x Wall Plugs