LCD Digital Sound Level Meter 30-130dBA Noise Measuring Instrument Decibel Monitoring Tester with Data Logging Function

Features:
Large LCD display, easy and clear to read.
With white backlight, turn on/off freely.
Sound level range: 30-130dBA.
Frequency weighting: A/C.
Time weighting selection: Fast/Slow.
Data logging function: 32,000 readings storage.
Max. data hold function.
High accuracy, and bar graph display.
AC/DC output function.
Over/under range alarm function.
Low battery alert.
Manual/auto shut off function.
Time display on the LCD screen.
Equipped with sponge ball.
Great for sound quality control in factory, office, home, school and construction site.