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安(an)科瑞ANRV電(dian)(dian)壓(ya)(ya)繼電(dian)(dian)器(qi)監控保(bao)護可選記(ji)憶(yi)功(gong)能，能對單相交流(liu)或直流(liu)電(dian)(dian)壓(ya)(ya)進(jin)行監控和保(bao)護，保(bao)護設(she)備免受過壓(ya)(ya)或欠(qian)壓(ya)(ya)影(ying)響。包含兩路(lu)獨(du)立的(de)繼電(dian)(dian)器(qi)輸出(chu)接口(kou)，可選過壓(ya)(ya)、欠(qian)壓(ya)(ya)、窗口(kou)等多(duo)種保(bao)護模(mo)式(shi)，可選記(ji)憶(yi)功(gong)能，適用(yong)于額定(ding)電(dian)(dian)源電(dian)(dian)壓(ya)(ya) AC/DC 24-240V、測(ce)量電(dian)(dian)壓(ya)(ya) 1V-100V 的(de)工(gong)作環境 ，并通過數碼管(guan)直觀清晰的(de)顯示(shi)當(dang)前測(ce)量電(dian)(dian)壓(ya)(ya)、繼電(dian)(dian)器(qi)狀(zhuang)態。