SL-5866声级计（噪音计）产品介绍
【中文版】
SL-5866声级计是一款专业环境噪声监测设备，适用于工业检测、环境保护、建筑工地、社区管理等多种场景的声学测量需求。本产品采用数字信号处理技术，配备高灵敏度传感器，可快速捕捉20Hz至12.5kHz范围内的声频信号，实现30dB至130dB量程的精准测量。其紧凑的机身设计与直观的操作界面相结合，为使用者提供便捷的现场检测体验。
设备搭载2.4英寸液晶显示屏，支持实时声级曲线显示与数据可视化，便于现场快速判读测量结果。三档响应时间调节功能（快速/慢速/脉冲）可适配不同环境特征，内置的A/C频率计权模式能有效模拟人耳听觉特性，使测量数据更贴近实际感知。特别设计的防风罩可降低气流干扰，确保户外测量的稳定性。
在功能配置方面，SL-5866提供MAX/MIN瞬时值记录、数据保持以及手动存储功能，支持累积1000组测量数据存储。内置可充电锂电池可连续工作30小时，配合低功耗待机模式，满足长时间监测需求。防护等级达到IP54，可在-10℃至50℃环境下稳定运行，防尘防溅设计提升设备耐用性。
该产品适用于工厂车间噪声检测、设备运行状态监测、环境评估调查、公共空间声学管理等多个专业领域，为工程技术人员、环境监测人员及管理人员提供可靠的数据支持。通过优化传感器布局与电路设计，设备在复杂声场环境中仍能保持测量一致性，是现场噪声管理的实用工具。
【English Version】
The SL-5866 Sound Level Meter is a professional environmental noise monitoring instrument designed for acoustic measurement applications across industrial inspection, environmental protection, construction sites, and community management scenarios. Equipped with digital signal processing technology and high-sensitivity sensors, this device accurately captures audio signals within 20Hz to 12.5kHz frequency range, delivering precise measurements from 30dB to 130dB. Its compact design and intuitive interface ensure efficient on-site operation.
Featuring a 2.4-inch LCD screen with real-time sound level curve display, the device enables instant data visualization for quick interpretation. Three selectable time weighting modes (Fast/Slow/Impulse) adapt to varying environmental conditions, while built-in A/C frequency weighting effectively simulates human auditory characteristics for perceptually relevant measurements. The specially designed windscreen minimizes airflow interference during outdoor operations.
Functional configurations include MAX/MIN value recording, data hold function, and manual storage capacity for 1000 measurement datasets. Powered by a rechargeable lithium battery with 30-hour continuous operation and low-power standby mode, it supports extended monitoring tasks. With IP54 protection rating and operational range from -10℃ to 50℃, the dustproof and splash-resistant construction enhances durability in challenging environments.
This instrument serves multiple professional fields including industrial facility noise assessment, equipment operation monitoring, environmental evaluation studies, and public space acoustic management. Optimized sensor placement and circuit design ensure measurement consistency in complex sound fields, making it a reliable tool for engineers, environmental specialists, and facility managers. Its balanced performance in measurement accuracy and operational practicality provides dependable data support for noise control projects.
