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Precision Acoustic Calibrator

IEC 60942 Class 2 | Model CAL1150

Larson Davis Acoustic Calibrator Model CAL1150 is a battery-operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment with ½ ” and smaller microphones. CAL1150 provides an output level of either 94 dB or 114 dB at 1000 Hz.

The CAL1150 is a lower cost option for calibration of Class 2 sound level meters and personal noise dosimeters. It should not be used for calibrating class 1 devices.

Highlights 

  • Output level: 94 dB or 114 dB
  • Output frequency: 1000 Hz
  • Meets IEC 60942:2017 and ANSI S1.40-2006 Class 2
  • requirements
  • Includes rechargeable lithium battery

Applications

Field or laboratory calibration of: 

  • Class 2 Sound level meters
  • Noise dosimeters

Key Specifications for Model CAL1150

Frequency1000 Hz ± 1 Hz
Calibration Sound Pressure Level
94.0 dB or 114.0 dB ± 0.2 dB
Minimum Stabilizing Time10 s after coupling microphone and calibrator
Dimensions (L x W x H)3.85 x 2.43 x 1.57 in (98 x 62 x 40 mm)
Weight5.5 oz (156 g)
Charging ConnectorUSB-C