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CR812C Advanced Integrating Sound Level Meter

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  • Type 2 to IEC 60651, IEC 60804 and ANSI S1.4.
  • IEC 61672-1:2003 Class 2.
  • Simultaneous Leq, SPL, Lmax,  and Peak, Ln's.
  • "A", "C" and "Z" (flat from 10 Hz to 20 kHz ± 1.5 dB) frequency weightings on channel 1, "C" on channel 2 for simultaneous Peak measurements.
  • RMS "Fast" and "Slow" time weightings.
  • Clear graphical display with backlight.
  • Rugged cast aluminum case
  • Seven Measurement ranges, covering:
    • 25 to 140 dB(A), Peak 143 dB(C)
  • Noise floor 20 dB(A)
  • Powered by two AA cell batteries.
  • Dimensions:
    • 11.8" x 2.9" x 0.9", 15.8 ounces
    • 300mm x 75mm x 25mm, 450g
  • Measurements stored for display or transfer to computer using the software provided.
Data logging integrating sound level meter

This integrating sound level meter is designed to suit almost all occupational noise measurement applications. With its measurement functions (in particular Fast/Slow Sound Level, Leq and Peak), Type 2 specification, large display and ease of use it meets the requirements of most national regulations.


Making Quick Measurements

The CR812C can be used for making quick noise assessments, giving a simple reading for the LAeq, LCPeak as required by many noise measurement regulations.

starting a noise measurement
Press the
run key
LAeq on the display
Read the LAeq from the display

Detailed Noise Assessment

Most measurements can be shown on the built in display but for a more detailed noise survey it is often better to download the measurements to a computer for further analysis and reporting.

storing a noise measurement
Stop key
When the Stop key is pressed the measurement is automatically saved.

Timed and repeating measurements are also possible. For reporting and post processed visit the software page.

Deaf Defier Software

The Deaf Defier software and download cable are provided at no extra cost with the CR:812C. Click here for more information.

Additional Documentation

pdf datasheets




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