【AZ8921噪音计（RS232）中英文产品介绍】
AZ8921噪音计（RS232）是一款专业级声学测量设备，专为环境噪音监测、工业现场检测及科研数据分析等场景设计。该产品采用高灵敏度传感器与数字化处理技术，能够精准捕捉宽量程范围内的声音信号，并实时输出测量结果。其模块化设计兼顾便携性与功能性，适用于室内外多种复杂环境的长期稳定工作。
核心功能方面，设备内置智能数据采集系统，可自动记录瞬时声级、等效连续声级（Leq）及最大/最小值等关键参数，测量范围覆盖30dB至130dB，分辨率达0.1dB。独特的RS232串行通信接口支持与计算机、工控设备或数据记录仪实现双向数据传输，便于用户构建自动化监测系统或进行远程数据管理。配备背光功能的液晶显示屏，在弱光环境下仍可清晰读取测量数据，同时具备数据保持、自动关机等实用功能。
该产品适用于多个行业领域：在环境保护中，可用于城市功能区噪声普查和建筑工地合规监测；在工业生产中，协助企业进行设备噪声源定位及职业健康防护评估；在科研教育领域，则为声学实验研究提供可靠的测量工具。人性化的操作界面设计降低了使用门槛，通过三键式导航即可完成所有基础设置，配合可选的防风罩配件，有效减少气流扰动对户外测量的干扰。
技术优势体现在三个方面：首先，优化的电路设计确保设备在-10℃至50℃宽温域内保持测量精度；其次，创新的抗射频干扰技术大幅提升电磁复杂环境下的数据可靠性；最后，模块化结构设计使主机可与多种配件灵活组合，满足个性化测量需求。设备采用高强度工程塑料外壳，配合防滑握持设计，兼顾防护性能与操作舒适度。
ENGLISH VERSION:
The AZ8921 Sound Level Meter (RS232) is a professional-grade acoustic measurement instrument designed for environmental noise monitoring, industrial site evaluation, and scientific research applications. Equipped with high-sensitivity sensors and advanced digital processing technology, this device accurately captures sound signals across a broad measurement range while providing real-time data output. Its modular construction combines portability with functional reliability, making it suitable for extended operation in diverse indoor and outdoor environments.
The device features an intelligent data acquisition system capable of automatically recording key parameters including instantaneous sound levels, equivalent continuous sound levels (Leq), and maximum/minimum values. With a measurement range spanning 30dB to 130dB and 0.1dB resolution, it delivers precise acoustic analysis. The integrated RS232 serial communication interface enables bidirectional data transmission with computers, industrial controllers, or data loggers, facilitating the establishment of automated monitoring systems. The backlit LCD display ensures clear visibility in low-light conditions, complemented by practical functions such as data hold and auto power-off.
This instrument finds application across multiple sectors: Environmental protection agencies utilize it for urban noise mapping and construction site compliance monitoring; manufacturing enterprises employ it for equipment noise source identification and occupational health assessments; research institutions leverage its capabilities for acoustic experimentation. The user-friendly interface features three-button navigation for basic configuration, while optional windshields minimize airflow interference during outdoor measurements.
Technical innovations include three key aspects: Precision-maintaining circuit design guarantees measurement accuracy within a wide temperature range (-10℃ to 50℃); advanced RF interference resistance technology enhances data reliability in electromagnetically challenging environments; modular architecture allows flexible combination with various accessories. The rugged engineering plastic housing with ergonomic non-slip grip ensures both durability and operational comfort during extended field use.
（中英文介绍各约450字，总计900字）
