聲級計(jì)/儀產(chǎn)品及廠家
標(biāo)準(zhǔn)：iec651 2型，ansi s1.4 2型測量范圍：a計(jì)權(quán): 35～130db兩檔測量：35~100db，80~130db
更新時間:2025-09-09
多功能聲級計(jì) 標(biāo)準(zhǔn)：iec651 2型，ansi s1.4 2型功能：sl, leq，ln計(jì)權(quán)：a, c, linear, filter測量范圍：a計(jì)權(quán): 30-130db c計(jì)權(quán): 35-130db 線性: 35-130db
更新時間:2025-09-09
聲級計(jì) 噪聲統(tǒng)計(jì)分析儀 便攜式噪音測量儀 訂貨號：ky3780符合標(biāo)準(zhǔn):gb/t 3785 2型, iec 61672 2級測量上限:130db
更新時間:2025-09-09
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