AZ8925数字噪音计/分贝计是一款经济实用的便携式声级测量仪器，适用于多种场景。它采用口袋型设计，便于携带和操作，重量仅约190克。该设备具备A/C两种频率加权特性，能够测量A环境噪音（40～130dB）和C机械噪音（45～130dB）。它还提供4档手动测量档位，分别为40-70dB、60-90dB、80-110dB和100-130dB。

其显示功能强大，配备3 1/2位液晶及条码显示，屏幕尺寸为37x40mm，可同时以数字及类比显示音量。此外，该设备支持FAST（快）/SLOW（慢）两种响应时间选择，能够记录最大/最小值，并具备锁定读值功能。它还内置10mm电容式麦克风，确保测量的准确性。

在操作方面，AZ8925具备自动及手动关机功能，可节省电力。其工作温度范围为0℃至50℃，相对湿度小于90%，储存温度范围为-10℃至60℃，相对湿度小于70%。该设备使用9V电池供电，也可选择4×1.5V AAA电池。

The AZ8925 Digital Noise Meter/Decibel Meter is an economical and portable sound level measuring instrument suitable for various scenarios. It features a pocket-sized design for easy carrying and operation, with a weight of only about 190 grams. This device has A/C frequency weighting characteristics and can measure A-weighted environmental noise (40～130dB) and C-weighted mechanical noise (45～130dB). It also offers four manual measurement ranges: 40-70dB, 60-90dB, 80-110dB, and 100-130dB.

The display functions of the AZ8925 are robust, with a 3 1/2-digit LCD and bar graph display, measuring 37x40mm, capable of showing sound levels both digitally and analogically. Additionally, the device supports FAST (quick) and SLOW (slow) response time options, can record maximum and minimum values, and has a readout lock function. It also features a built-in 10mm condenser microphone to ensure accurate measurements.

In terms of operation, the AZ8925 has both automatic and manual shutdown functions to save power. It operates within a temperature range of 0℃ to 50℃ and a relative humidity of less than 90%, and can be stored in temperatures ranging from -10℃ to 60℃ with a relative humidity of less than 70%. The device is powered by a 9V battery, or alternatively, four 1.5V AAA batteries.