■  Precision noise measurement

■  Sound level logging and precision recording

■  Personal noise exposure measurement in the workplace

■  Occupational noise evaluation

Model:	ASV5910+-1 Noise Dosimeter
Applied Standards:	IEC 61252:2002 Personal Sound Exposure Meters, IEC61672-2002,Class 2; ANSI S1.25:1991 Personal Noise Dosimeters
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