sound level meter

Measuring Range:30 to 130dBA,35 to 130dBC
Accuracy: ?.5dB
Frequency Range:31.5HZ to 8.5KHZ
Linearity Range:50dB
AC/DC output
Auto power shut off
Low battery indication
Over range indication
Digit&resolution:5 Digits &0.1dB
Time weighting Selection:fast/slow
Microphone:1/2 inch electret condenser
Frequency weighting:A & C
Sound measuring level selection
Max hold function
Sampling frequency:2 times/sec