【NL-21精密聲級計/噪音計 產(chǎn)品介紹（中英雙語）】

‌產(chǎn)品概述‌
NL-21精密聲級計是一款專為環(huán)境噪音監(jiān)測、工業(yè)聲學分析及日常聲級測量設(shè)計的便攜式儀器。其核心設(shè)計理念為高精度測量與用戶友好操作的結(jié)合，適用于環(huán)保檢測、工業(yè)生產(chǎn)、建筑施工、公共設(shè)施管理等領(lǐng)域，幫助用戶快速獲取聲學數(shù)據(jù)并輔助決策。
The NL-21 Precision Sound Level Meter is a portable instrument designed for environmental noise monitoring, industrial acoustic analysis, and daily sound level measurement. It combines high-precision measurement capabilities with user-friendly operation, making it suitable for environmental protection inspections, industrial production, construction projects, and public facility management, providing reliable data to support decision-making.

‌核心特點‌

1. ‌寬量程高精度‌
   NL-21支持30 dB至130 dB的寬量程測量，最小分辨率達0.1 dB，可捕捉瞬時聲壓變化，適用于穩(wěn)態(tài)及動態(tài)噪音環(huán)境的數(shù)據(jù)采集。
   With a wide measurement range of 30 dB to 130 dB and a resolution of 0.1 dB, the NL-21 captures instantaneous sound pressure variations, delivering accurate data in both stable and dynamic noise environments.

2. ‌智能數(shù)據(jù)管理‌
   內(nèi)置數(shù)據(jù)存儲功能，支持多組測量結(jié)果記錄與導出，搭配PC端分析軟件（需單獨配置），可生成趨勢圖表及統(tǒng)計報告。
   Equipped with built-in data storage, the device supports recording and exporting of multiple measurement results. When paired with PC analysis software (optional), it generates trend charts and statistical reports.

3. ‌適應(yīng)性設(shè)計‌
   采用抗干擾電路與防風噪結(jié)構(gòu)，在復(fù)雜環(huán)境中保持測量穩(wěn)定性；配備背光顯示屏與直觀操作界面，支持全天候使用。
   Featuring anti-interference circuitry and wind-noise-resistant design, the NL-21 ensures stable performance in complex environments. Its backlit display and intuitive interface enable 24/7 operation.

4. ‌長效續(xù)航‌
   內(nèi)置可充電鋰電池，支持連續(xù)工作20小時以上，滿足長時間戶外監(jiān)測需求。
   Powered by a rechargeable lithium battery with over 20 hours of continuous operation, it meets the demands of prolonged outdoor monitoring.

‌技術(shù)參數(shù)‌

• 測量范圍：30-130 dB
• 頻率加權(quán)：A/C 加權(quán)（可選）
• 時間加權(quán)：Fast/Slow
• 傳感器類型：高靈敏度電容式麥克風
• 顯示精度：0.1 dB
• 工作溫度：-10℃至50℃

‌應(yīng)用場景‌

• ‌工業(yè)領(lǐng)域‌：機械設(shè)備噪音檢測、車間聲環(huán)境評估
• ‌環(huán)保監(jiān)測‌：城市交通噪音分析、社區(qū)聲環(huán)境合規(guī)性檢查
• ‌建筑工程‌：施工噪音控制、隔音材料效果驗證
• ‌科研教育‌：聲學實驗教學、環(huán)境數(shù)據(jù)采集

‌生產(chǎn)與服務(wù)‌
本產(chǎn)品由國內(nèi)專業(yè)聲學儀器制造商生產(chǎn)，提供完善的售前咨詢與售后技術(shù)支持。如需了解產(chǎn)品詳情或定制需求，歡迎通過官方渠道聯(lián)系。
Manufactured by a domestic acoustic instrument specialist, the NL-21 is backed by comprehensive pre-sales consultation and after-sales technical support. For product details or customization inquiries, please contact us through official channels.

‌企業(yè)理念‌
我們致力于通過持續(xù)技術(shù)創(chuàng)新，為全球用戶提供實用、可靠的聲學測量解決方案，助力綠色發(fā)展與智慧城市建設(shè)。
We are committed to delivering practical and reliable acoustic measurement solutions through continuous innovation, supporting global efforts in sustainable development and smart city initiatives.

（注：本介紹基于產(chǎn)品通用功能編寫，具體規(guī)格請以實物為準。）
(Note: This description is based on general product functions. Specifications may vary by actual product.)

【字數(shù)統(tǒng)計：中文約450字，英文約320字】