Sound Level Meter with Data Logger

Features:
Sound level Range:30 to 130dB(Auto Ranging)
Frequency weighting: A/C
Fast/Slow time weighting selection
32000 Reading Internal Memory (Data record function)*
Max Hold function
High accuracy
Bar graph display
AC/DC function
White Backlight
Over / Under alert function
Time display
Auto-off function setup
Low Battery Alert
Tripod Mount (Tripod not included)
Software, USB Lead, Case Included

Specifications:
Calibration sound source: 94dB @ 1kHz
Measurement range: 30~130dBA
Accuracy: +1.5dB(reference sound pressure standard,94dB@1KHz)
Frequency response: 31.5~8.5KHz
Resolution: 0.1dB
Frequency weighting: A/C
Analogy bar graph: 2dB/1 Bar graph
Sampling rate: 2 times/second (FAST), 1 time/second (SLOW)
AC signal output: 4Vrms/ full barograph, output impedance is
approx 600 ohm
DC signal output: 33mV/dB
Dynamic characteristic: FAST (high speed) / SLOW (low speed)
Data storage quantity: 32000 readings
Power supply: 6V (4pcs AA Size 1.5V battery)
Dimension:245*7*45mm
Weight:approx240g(battery not included)