Tender For supply of earthleakagedetector (12 channels) as per rdso specification no. rdso/spn/25 6/2002 or latest having 6 digit counter, 12 channel of 110v ac-4 channel,110 dc-2 channel, 24 dc -4 cha nnels, 12v dc -2 channels along with standard sub rack insulation resistance meter, remote indication an d remote buzzer etc. [ warranty period: 30 months after the date of delivery ]