SMART SENSOR AS844+ Digital Sound Level Meter Digital Noisemeter LCD Sound Level Meter 30-130dB Noise Volume Measuring Instrument Decibel Monitoring Tester with Data Record & USB Connect Computer Function

Features:
Data storage function allows to store up to 15,000 groups of data.
Connect with the computer through USB cable, which supports data record download, real-time sampling analysis, and graph data printing.
Real time display the current temperature(℃/℉ switchable) and humidity.
2.7 large LCD display for easy reading, convenient to use.
Wide measurement range from 30dB to 130dB, Frequency: 31.5Hz - 8KHz, Resolution: 0.1dB, Accuracy: 1.5dB.
With A and C equivalent weighted sound pressure levels.
Fast and slow dynamic characteristic mode.
Both AC and PWM signal output are available.
Low battery indication, automatic manual power off function.
Equipped with sponge ball and a sturdy storage case. Compact and light, convenient to hold and carry.
Portable and easy to use, suitable for checking, monitoring or controlling the sound level for personal, families, business, studies, industrial, etc.