supply of edgewise scaled illuminated traction motor voltmeter..edgewise scaled illuminated traction motor voltmeter.., edgewise scaled illuminated traction motor voltmeter with external series resistor 88k ohms resistor, range 0-900v, suitable for wag5 locos, conforming to clw specn.no.clw / es / i-21 alt-b and sett & de drg. no. 323, clw drg.no.clw / es / sk1 / i- 21.external series resistor 88 kilo ohms for use with above traction motor voltmeter, conforming to clw specn. no.clw / es / i-21. alt-b and clw drg no.clw / es / sk- 5 / i-21. dimersions as per sett and de drg no 325 dial 0- 900 for wag5 and 0- 900x2 for wam4 locos. [ warranty period: 30 months after the date of delivery ]