Microphone:

1/4 inch prepolarized condenser field replaceable threaded microphone

Channel:                               

Dual channels

Measurement Range:

40-140dBA 

Peak C Measuring Range:   

70 to 143dBC

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:                

128k

Data logging  interval

1 min, 2 min, 5 min, 10 min and 20 min.

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 36 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