Precision Sound Level Calibrator Cal250: Larson Davis

Precision Sound Level Calibrator Cal250: Larson Davis

The CAL 250 Sound Level Calibrator is a battery operated precision microphone calibrator for sound level meters, Noise dosimeters, Noise monitoring station and Microphone arrays. The CAL 250 are adaptable for a variety of microphones.

ANSI S1.40, IEC 60942:2017 & IEC60942:2003 Class 1 compliant. Output level: 94 or 144 dB, Output frequency:1 kHz, adapters for 1/2″, 1/4″,3/8″ and 1/8″ microphone openings and has an internal battery.

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