供应深圳BK4231音校准器传声器校正器 百度推荐深圳声仪科技有限公司供应深圳BK4231音校准器传声器校正器,94DB传声器校准器,传声器1/2英寸,1/4英寸,1/8英寸.
FEATURES
? Conforms to IEC942 1988 Class 1 and ANSI
S1.40–1984 R1997
? Robust pocket-size design with highly stable level
and frequency
? Calibration accuracy ±0.2 dB
? 94 dB SPL, or 114 dB SPL for calibration in noisy
environments
? Extremely small influence of static pressure
? So...