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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.
Field or laboratory calibration of:
| Frequency | 1000 Hz ± 1 Hz |
Calibration Sound Pressure Level | 94.0 dB or 114.0 dB ± 0.2 dB |
| Minimum Stabilizing Time | 10 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) |
| Weight | 5.5 oz (156 g) |
| Charging Connector | USB-C |
| Included | |
| CBL242-03 | USB charging cable (USB-C to USB-C) with included USB-C to USB-A adaptor |
| Optional | |
| ADP109 | ¼” microphone adaptor |
| ADP031 | 3⁄8” microphone adaptor |
| APD075 | 1⁄8” microphone adaptor |
| CCS064 | Transportation and storage case |
| Safety | IEC 61010-1:2017 |
| Acoustic | ANSI S1.40-2006, Class 2 IEC 60942:2017, Class 2 |
| EMC | Directive 2014/30/EU |
| CE | Yes |
| ROHS | Directive (EU) 2023/1437 |