Tenmars Noise Dosimeter:

Display Range : 30-90dB ; 50-110dB ; 70-140dB.
Test Range : 41-86dB, 55-106dB and 75-125dB.
Frequency Weighting : A ; C ; Z.
Perform OSHA and IEC Noise accumulation surveys.
Six built-in standard dose measurement setups :
OSHA, MSHA, DOD, ACGIH, ISO85, ISO90.
USB Data logger .
Data logger up to 1,000,000