Material：ABS Plastic
Measuring Range:30~130 dBA35~130 dBC
Accuracy：±1.5dB
Frequency range:31.5Hz to 8.5K Hz
Resolution：0.1dB
Frequency weighting:A and C
Digital Display：4 digits
Analogy bar graph：1dB or 1 bar graph
sample rate：20 times / second
Microphone：1/2inch polarization capacitance microphone
Standard：According to lEC651 TYPE 2 &ANSIS1.4 TYPE2
Dynamic range:：50dB/100dB
Level ranges:：30-80dB; 50-100dB;60-110 dB; 80-130dB
Overload indication：OVER! UNDER
AC signal output:：4Vrms/full bar graph, output impedance is about 6o0 ohl
PwM signal output:Duty cycle=0.01xdb value/3.3 x
Dynamic characteristic:FAST (high speed)y sLow(Iow speed)
Calendar accuracy：+-30 seconds/day
Data storage quantity：4700
The maximum value holding：MAX
Range Selection：4 modes
self calibration time:10 secs(every turn on)
Operating condition：Temperature :0-40C ; Humidity: 10% to 80%RH
Storage Condition：Temperature: -10 to 60C ; Humidity: 10% to 70% RH
Power：9v battery or 9V 100mA（without battery）
Package: 1*Sound Level Meter (without battery)
Note:
1. Please Allow 1-3cm Differs Due To Manual Measurement.
2. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.Please refer to the received product. Thank you for your understanding.