Tenders for Supply of Passenger Emergency Alarm Signal Device With Fixed Key Arrangement C Onforming To Rdso Spec. No: 02-Abr-02, Amendment No. 4 Of September 2016, Appendix-J To Rdso Drg No : Sk - 97017, Alt : 2 . Warranty Period: 30 Months After The Date Of Delivery Warranty Perio D: 30 Months After The Date Of Delivery