Microphone:

1/4 inch prepolarized condenser field replaceable threaded microphone 

Channel:                               

Dual channels

Measurement Range:

40-140dBA

Peak C Measuring Range:   

70 to 143dB

Frequency Range:                

20Hz to 12.5kHz

Frequency Weightings:        

Parallel (simultaneous) A, C, Z for each channel

Time Weightings:                

Parallel (simultaneous) F, S, I, Peak for each channel

Selectable thresholds :         

40 to 90dB

Exchange rates:                    

3, 4, 5 and 6   

Selectable criterion:             

70 to 90dB

Dose exposure measurement range:

0.01Pa2h ~ 99.99Pa²h

Noise dose measuring range:

0% ~ 9999%

Integrating time：

1 second ~ 24 hours

Memory capacity:                

32GB TF card

Sampling interval of statistic analysis:

0.01s

Calibration information:      

Calibration dates, times, and levels

Internal software function:  

Integrating Function,  Statistical Analysis Function

Security:                               

Lock via keys

Power supply:                       

Rechargeable lithium polymer battery  

Battery life:                          

Over 16 hours run capacity

Dimensions:                         

68(H)×68(W)×20(D)mm 

Weight:                                 

95g  

Working Temperature:        

-15℃～50℃

Display:                                 

128×64 LCD

Output:                                  

Mini USB port

Measure Parameters:

LXYp,  LXeq,T,  LXYmax,  LXYmin,  LN (Note:  X is A, C, Z; Y is F, S, I; N can be 1-99)

SEL,  Lex,8h,  Lavg, TWA,  DOSE,  E,  SD,  LXpeak

Precision recording function: 

 32kHz,16bit

High sample frequency, high accuracy 蜜桃视频免费. big capacity files for further analysis.

 16kHz,16bit

Medium sample frequency, medium capacity files for further analysis.

 8kHz,8bit

Low sample frequency, low capacity files only for monitoring