HP-882A,数字式声级计

数位显示Digital display: 5 digits LCD.

测量范围Measuring level: 30~130 dBA, 30~130 dBC.

分辨率Resolution：0.1dB.

精确度Accuracy:±1.5 dB (under reference conditions) .

频率响应Frequency range: 31.5 Hz~ 8.5K Hz .

动态范围Linearity range: 50 dB .

频率加权特性Frequency weighting: A, C .

模似条图Bar graph: 50 dB scale at 1 dB step for monitoring

current sound pressure level display .

测量量程Level ranges：30-80 dB；50-100 dB；

60-110 dB；80-130 dB.

动态特征Time weighting: Fast / Slow .

麦克风Microphone: 1/2 inch Electret Condenser microphone .

最大值锁定Max: Maximum hold .

电源Power supply: 1*9V alkaline cells or DC 9V adapter < Power life: About 30 hrs >.

开机自检时间Self calibration time: 10 sec (every turn on) .

机身尺寸Dimensions: 220×67×32mm .

重量Weight:约approx. 210g(含电池including battery).