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CEL633A Environmental Sound Level Meter

cel633 environmental sound meter
CEL633A Sound Level Meter


The CEL633A data logging Integrating Sound Level Meter is available as either Type 1 (CEL633A1) or Type 2 (CEL633A2) as defined by the international sound level meter standards.


Sound Level Meter Standards

  • ANSI S1.4 and ANSI S1.43 Type 1 or Type 2
  • IEC 60651 and IEC 60804 Type 1 or Type 2
  • IEC 61672 Class 1 or Class 2


Using a meter that meets these standards is essential for repeatable results and especially for any measurements that will be used for legal purposes.

Measurement range 20 to 140 dB (single range), 143 dB Peak
Display 320 x 240 pixel color TFT
Output to PC USB Mini B
Batteries 3 x AA Alkaline
  (15 hours with backlight off)
External Power 9 to 14V DC at 250mA
  (2.1mm connector)
Dimensions 72 x 229 x 31mm, 295g
  2.8" x 9.0" x 1.2". 10.4oz
Memory 2GB
  >1 year when logging set to 1 second
Timers Duration 1s to 24h
  On/Off Timers: 6 sets with selectable times
  and repeat function.
Audio Recording 8kHz sampling, 60 hours recording
  24kHz sampling, 10 hours recording
Measured Parameters  
Frequency weightings A, C and Z (simultaneous)
Time weightings Fast, Slow and Impulse
Amplitude weightings Q3, Q4 and Q5
Thresholds 70 to 90 dB (applies to Lavg)
Sound Level LXY, LXYMax, LXYMin, LC-LA
Integrated LXeq, Lavg, LAE
Peak LXPeak
Takt Max LTM3, LTM5, LXIeq
Statistical 5 x Ln values
Time History Level 1 Periods of 1 minute to 1 hour
Time History Level 2 Periods of 1 second to 30 mins
Where X is frequency weighting A, C or Z
and Y is time weighting Fast, Slow or Impulse

CEL630 Sound Level Meter Datasheet (PDF, 866k)
CEL120 Acoustic Calibrator Datasheet (PDF, 423k)
Type 1 Environmental Sound Level Meter
In stock
Kit with Meter, Calibrator and Case
In stock
More pricing information

CEL63x Range

Occupational Noise
From $2107.00
Occupational Octave
From $2786.00
Occupational 1/3 Octave
From $3888.00
Environmental Noise
From $3215.00
Environmental Octave
From $3892.00
Environmental 1/3 Octave
From $4994.00
noise at work sound level meter

Outdoor Kit

For measuring in poor weather conditions

More details...

How to Buy

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Click the button or call +44 845 680 0313.

Purchase Order
Or by fax: +44 845 680 0316.

Information Request

Prices and Ordering

The Type 1 sound level meter is available alone or as part of a Kit, which includes Meter, Calibrator and Peli Carrying Case.

Order Code
Price (USD)
Type 1 / Class 1 Advanced Integrating Sound Level Meter
In stock
Kit with CEL633A1 Sound Level Meter, Calibrator, Windshield, Peli Case
In stock
Insight Software for CEL620, CEL630 and dBadge
In stock


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