supply of flasher hooter with announcement .flasher hooter with announcement .,flasher hooter with announcement for automatic smoke/fire detection with alarm system (f ds) in railway coaches as per rdso specification no.rdso/2008/cg-04. (rev-5) [ warranty period: 30 m onths after the date of delivery ] ] , smoke detector to sanrok part no.2ed-245-3543 or equivalent suitable to automatic fire det ection cum suppression system in railway coaches as per rdso specification no. is/rdso/cg/s/22001 [ w arranty period: 30 months after the date of delivery ] ] , heat detector to sanrok part no.2ed-245-3544 or equivalent suitable to automatic smoke/fi re detection with alarm system in railway coaches as per rdso specification no. rdso/2013/cg-06 (rev- 2) amdt-1 or latest. [ warranty period: 30 months after the date of delivery ] ]