139B極性測試儀產(chǎn)地:臺灣廠商:臺灣陽光sunlilab 主要特點(diǎn):不受環(huán)境噪音影響,立即判定出任何型式喇叭、耳機(jī)的正負(fù)極性,適合在生產(chǎn)線上使用。可與三種不同儀器連線(152A、7117C、及7116C),僅需一人即可操作,省工、省時(shí)。易學(xué)、易用,可靠度極佳?! odel-139B基本規(guī)格PulseTestingMethod.Polarity:Pos.polarity:GreenLEDindicatorwithbeepsound.Neg.polarity:RedLEDindicatorwithnosound.Sensor:ECMFiveselectingswitches:WF:suitableforthewoofer.M T:suitableforthemidrange,tweeter headphone.Ext.1~Ext.3:Forconnectinginstruments.Dim.:28(L)×9(H)×21(D)cm.6.NetWeight:2.5KGS.