IEC 60942 Class 2 Handheld Sound Level Calibrator for ½” microphones at 1000 Hz Used for Sound Level Meters and Noise Dosimeters.

The Larson Davis CAL150 Sound Level Calibrator is a battery operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment. It can provide an output level of either 94.0 or 114.0 dB (switch-selectable) at a frequency of 1 kHz.

It has been designed for both field and laboratory use and the accuracy has been calibrated to a reference traceable to the National Institute of Standards and Technology (NIST).

The Larson Davis CAL150 features a stable sound pressure independent of the battery condition. In addition, the Larson Davis CAL150 will turn off automatically to preserve battery and guarantee a stable output.

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Output level: 94 or 114 dB
Output frequency: 1 kHz
1/2” microphone opening
IEC 60942:2017 and 60942:2003 Class 2 compliant
Internal battery
Output level independent of battery condition
Adapters available: 1/4”, 3/8” & 1/8” microphones
Field calibration or laboratory
Calibration of Sound level meters
Calibration of Noise dosimeters
Calibration of Noise monitoring stations