supply of protection card, smoke detector & heat detector. , smoke detector as per sanrok part no. 2ed-245-3543 suitable for main control make: sanrok] [ warranty period: 30 months after the date of delivery ] ] , protection card for automatic fire smoke detection and suppression system (fdss) in railwa y coaches as per the rdso spec. no. rdso/2013/cg-06 (rev.2) amdt-1 or latest. accepted make sanrok. make brand- sanrok. [ warranty period: 30 months after the date of delivery ] ] , heat detector as per sanrok part no. 2ed-245-3544 suitable for main control m odule .(make:sanrok) [ warranty period: 30 months after the date of delivery ] ]