Buy or Rent Casella CEL-240 Sound Level Meter

The CEL-240 is a completely new design of sound level meter featuring the power of Digital Signal Processing (DSP) technology and the simplicity and low cost of a traditional analog instrument.  It can be used for a wide range of noise measurement tasks and is suitable for many everyday tasks.  Complying with all the ANSI and IEC accuracy specifications in the Type 2 category the CEL-240 will appeal to new experience users alike.

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SKU: 0600.02.05 Categories: ,


  • Simple 2 button operation
  • Wide range from 30 to 130dB
  • Large graphic LCD screen 128 x 128 pixels
  • Slow, Fast and Impulse time weightings
  • Current and highest noise level shown in display
  • Large numeric and analog bar graph display
  • Output to computer for simple data logging with pc
  • Auto calibration at either 114 or 94 1 kHz decibel level
  • Scrolling sound level display


The CEL-240 will be an ideal instrument for industrial hygiene measurements of noise in the workplace.  The meter has a low and high measurement range that covers a full 70dB on each range.  It can be used for machinery noise surveys as well as all general purpose workplace noise level measurements.  With the A and C frequency scales and the S, F and I time response the meter can be used to assess the right hearing protectors using the NRR method.  A non-decaying maximum hold feature on every display captures and displays the highest sound pressure level of any noise until reset by the user. 

Accuracy: ANSI S1.4 Type 2, IEC 61672-1 2002-5
Total measurement range (dB): 30 to 130
Frequency weightings: A and C
Time weightings: Slow, Fast, and Impulse
Batteries: 3 x AA Alkaline or rechargeable types
Battery Life: At least 35 hours

Product Manual (PDF)
Specifications (PDF)

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