Sound Level Meter Calibrator Decibel Meter Calibration Gauge 94 dB 114 dB

Description

ND9B Sound Level Meter Calibrator Noise Decibel Tester Calibration Instruments
Introduction:
For quick and easy calibration of sound level meters and sound measuring systems.
Features
* Handy sound source for quick and easy calibration of sound level meters and sound measuring systems.
* The Calibrator employs solid state integrated circuitry that provides accurate and stable performance.
* Sensitivity calibration of microphones.
* Suitable for field and laboratory use.
Technical Specifications
* Model:ND9B
* Standards: GB/T15173,ANSI S1.40 CLASS2,IEC942
* Sound Pressure Level: 94 dB, 114 dB
* Accuracy: 0.3 dB
* Cailbration Of Microphones: 1’’,1/2’’
* Frequency: 1000+0.1% Hz, so it can be corrected on A, B, C, D or linear frequency weighting.
* Applicable scope: ɸ12.7mm (1/2 inch) and ɸ23.77mm (1 inches) and acoustic microphone calibration of measuring instruments.
* Power Supply: 1x9V 6F22 Battery
（
Battery not included in the package
）
* Dimensions: 142x47x47 mm
* Weight:275g
* Standard Accessories: Main Unit, Windscreen,Operation Manual
* Optional Accessories: ND9 Sound Level Meter Calibrator, RS-232C Data with Software, Bluetooth Data Adapter with Software