ND9A Handheld Digital Sound Level Calibrator

Applications:For quick and easy calibration of sound level meters and sound measuring systems.Specifications:Model:ND9AStandards:GB/T15173, IEC942Sound Pressure:94 dB and 114 dBAccuracy:0.5 dBFrequency:10000.01% Hz allows calibration with A,B,C or D weighting networks or linear.Applications:Calibration of 1" and 1/2" microphonesTemperature Coefficient:0 to 0.01 dB/C" Altitude Effects:Approximately 0.1dB decrease for each 2000 feet increase in altitude from sea level to 12,000 feet elevation, or comparable atmospheric pressure change (approximately every 50mm of Hg decrease).Temperature Range:-40 to +65C(storage with batteries removed); -10 to +50C(operating)Power Supply:1x9V 6F22 BatteryDimensions:142x47x47mmWeight:275gStandard Accessories:Main UnitCarrying Case(B07)Operation Manual

• The accuracy of ND9A is 0.5dB.
• Suitable for field and laboratory use.
• Sensitivity calibration of 1" and 1/2" microphones.
• The Calibrator employs solid state integrated circuitry that provides accurate and stable performance.
• andy sound source for quick and easy calibration of sound level meters and sound measuring systems.