Larson Davis Cal250 Acoustic Calibrator - Acoustic calibrator of 1st precision class 114 dB, 251.2 Hz

Larson Davis Cal250 Acoustic Calibrator - The Larson Davis Cal250 acoustic calibrator of 1st precision class is suitable for calibrating 1" microphones at 251.2 Hz frequency. The device operates on batteries and generates a sound pressure level of 114.0 dB. Due to its design, it can be used for both laboratory and on-site calibrations.

Its calibration accuracy traceable to NIST ensures reliability. The provided sound pressure level is independent of the battery status. It can be used for calibrating sound level meters, noise dosimeters, and noise monitoring stations.

• Output Level: 114 dB level independent of the battery status
• Output Frequency: 251.2 Hz
• Microphone Connector: 1"
• Precision: 1st class
• Compliance: IEC 60942-1:2003 Class 1
• Power Supply: internal battery with automatic shutdown
• Optional adapters for 1/2", 1/4", 3/8", and 1/8" microphones, field adapter for calibrating 8 microphones simultaneously