Tender For bid to ras supply of area gamma monitor (measuring range 10 micro roentgen/hr to 10mr/hr) as per specifications , supply of area gamma monitor (measuring range 0.1mr/hr to 100mr/hr) as per specifications , spare gm detectors for area gamma monitors (measuring range 10 micro roentgen/ hr to 10mr/hr) , supply of spare gm detectors for area gamma monitors (measuring range 0.1mr/hr to 100mr/hr)