>Product Introduction

C224-Ⅰ sound level meter calibrator is used to calibrate sound pressure of sound level meters and other acoustic measurement instruments. The product conforms to GB/T 15173-2010 class 1 standard.

>Product Features

1. It has two standard sound pressure levels( 94.0dB & 114.0dB), and can be calibrated at two points of the sound pressure level.

2. Its working frequency is 1000Hz, calibration is independent of the weight network used by sound level meter (A, B, C, D weight network attenuates to zero at 1000Hz).

3. C224 sound level calibrator is small in size, light in weight, energy saving, stable in performance and easy to use. It is a pocket-sized ideal calibration sound source.

>Technical Parameter

1. Sound pressure level：94dB, 114dB

2. Sound pressure level accuracy：94dB ± 0.2dB    114dB ± 0.3dB

3. Frequency：1000Hz ± 1%

4. Harmonic distortion：≤2%

5. Battery：9V

6. Temperature range：0°C ～+40°C

7. Relative humidity：≤80%( 23°C )

8. Weight：about 250g