ADM-933 Manual or Auto Range Sound Level Meter
 
A precision sound level meter ideal for measuring noise levels in different environments and industries. Manufactured to IEC 60651 Type 2, this sound level meter has a precision electret condenser microphone and is lightweight and easy to use.
 
3 Manual Ranges: 30 to 80dB, 50 to 100dB, 80 to 130dB
0.1dB resolution
Selectable 'A' or 'C' frequency weighting
Fast (125ms) or Slow (1s) response filters
35mm LCD display with function indicators
LCD display backlight
Data Hold function freezes displayed value
Max Hold displays highest measured value
Min Hold displays lowest measured value
Over/Under range indicator
Auto power-off after 15 minutes of no activity
Low battery indication
Foam wind muffler for outside use
2 Year Warranty
Supplied with soft carry case, wind muffler and battery
 
Technical Specification
Range
Resolution
Accuracy
Frequency Range
Operation
30 to 130dB over 3 ranges or Auto Range
0.1dB
�1.4dB (94dB @ 1 KHz)
31.5Hz to 8 KHz
-20�C to 60?C, below 80%RH