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Digital Technology Optimized for AcousticsUtilizing the very latest in digital technology, the Model 831 is an advanced sound level meter/analyzer featuring a dynamic range of 120 dB, realtime 1/1, 1/3 octave frequency analysis, digital audio and voice recording with playback, internal memory to 2 GB and the most comprehensive data logging features available today. |
Extended Operating Time
A new firmware upgrade for the System 824 enables the
use of high capacity individual NiMH cells. The combination of
enhanced firmware and state-of-the-art rechargeable cells can
extend the operating time by as much as 50% over that
obtained with the cell pack originally supplied. Not only do these
cells provide a longer operating time, but their recharging time
is reduced to as little as fifteen minutes using advanced charging
units available from major manufacturers.
Microphone Preamplifiers with TEDS
Larson Davis now offers three state-of-the-art microphone preamplifiers supporting TEDS to IEEE P1451.4. The ICP powered ¼" PRM422 and ½" PRM426 are for use with prepolarized microphones, while the PRM905 is appropriate for use with microphones requiring a polarization voltage.
The System 824 combines real time analyzer/sound level meter capabilities in one rugged package.
Vibration Meter
The HVM 100 Human Vibration Monitor is a lightweight, rugged hand-held instrument with a bold alpha-numeric LCD that will display and print in multiple languages.
