supply of digital voltmeter with led display, range 0-1000v ac, class-1. , digital voltmeter with led display, range 0-1000v ac, class-1, true 4 digit, 3 line, 7 segmen t led display, size 96sq.mm, input voltage 800v ac l-l parameter displayed, ac line to neutral voltage ( r y, yb, br, rn, yn, bn ), with auxiliary supply 24v / 110v dc, 4va, class1.0 suitable for lhb power car & ls lrd confirming to rdso spec no. rdso / pe / spec / tl / 0195 ? 2019 ( rev. 0 ). approved make as per bo m. make:- ae, socomec, rishab, siemens, yokins only. note : material to be procure from oem or it?s autho rized dealers only with tender specific authorization from oem. [ warranty period: 30 months after the da te of delivery ] ]