聲級計/儀產品及廠家
產品簡介： cel-240數字式聲級計，采用先進的dsp技術，符合ansi和iec type 2的精度要求，測量范圍30-130db，動態范圍70db。適用于多領域的日常測量，特別是工作場所工業衛生測量和機械噪聲測量。a＆c頻率加權和慢速時間響應用于nrr評估聽力保護要求，無衰減最大值保持功能，30秒自動背光，可用標準三角架固定安裝測量，3×aa堿性電池可工作35小時以上，或用usb接口外部電源連續工作，數字和模擬輸出。主要特點：☆ 簡單的2鍵操作；☆ 30-130db測量范圍；☆ 128×128背光圖形lcd顯示屏；☆ 慢、快和脈沖時間加權；$
更新時間:2025-06-06
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