BK8650噪音计是一款适用于多种场景的便携式专业设备，广泛应用于工业监测、环境评估、建筑工地、城市管理等领域。该设备采用一体化紧凑设计，配备高灵敏度电容式麦克风，能够捕捉31.5Hz至8000Hz频率范围内的声波信号。其测量范围为低档35dB至90dB，高档75dB至130dB，解析度达到0.1dB，精确度为±1.5dB（参考94dB@1KHz）。BK8650还具备多种测量模式，包括等效连续声级、瞬时峰值声级等，并支持A、C频率加权以及慢速和快速时间加权。设备内置数据存储模块，可记录多组测量结果，方便后续分析。此外，BK8650配备高对比度LCD显示屏，支持自动背光调节，确保在不同光照条件下都能清晰读数。其结构采用防尘防溅设计，结合抗干扰电路优化，即使在复杂声场中也能保持稳定工作。内置可充电锂电池，配合低功耗设计，能满足长时间户外作业需求，同时提供USB接口用于数据导出和设备充电。

The BK8650 Noise Meter is a portable professional device suitable for a variety of scenarios, widely used in industrial monitoring, environmental assessment, construction sites, and urban management. This device features an integrated compact design and is equipped with a high-sensitivity condenser microphone, capable of capturing sound wave signals within a frequency range of 31.5Hz to 8000Hz. Its measurement range is from 35dB to 90dB on the low range and from 75dB to 130dB on the high range, with a resolution of 0.1dB and an accuracy of ±1.5dB (referenced to 94dB@1KHz). The BK8650 also supports various measurement modes, including equivalent continuous sound level and instantaneous peak sound level, and offers A and C frequency weighting as well as slow and fast time weighting. The device is equipped with a built-in data storage module that can record multiple sets of measurement results for subsequent analysis. Additionally, the BK8650 features a high-contrast LCD screen with automatic backlight adjustment to ensure clear readings under different lighting conditions. Its structure is designed to be dustproof and splash-proof, combined with optimized anti-interference circuits, ensuring stable operation even in complex sound fields. The device is powered by a rechargeable lithium battery and features low power consumption design, which can meet the needs of long-term outdoor operations. It also provides a USB interface for data export and device charging.