supply of set of items for bp pressure drop audio visual indication modification in hhp locomotives. , set of items for bp pressure drop audio visual indication modification in hhp locomotives. set consists of 0 5 items as follows: 1. toggle switch to emd part no.10592529 or rgk part no. ts-1020bl or equivalent. qty: 02 nos. 2. pressure switch to model no. rt-200-sbx-can make: honeywell, eaton, knorr breams, faively, danfoss, indfos or equiv alent. qty: 01 no. 3. indicator light assy. to siemens p/n. 3sb52 85-6hl04 or 3sb52 35-6hl14. color - amber , qty: 02 n os. 4. alarm alerter to sonalert mallory p/n. sc110njr. qty: 02 nos. 5. audio visual indication box to ubl/dls drawing n o. dsl/ubl/cp/0824-1 with complete internal wiring. qty: 02 nos. [ warranty period: 30 months after the date of deliv ery ] ]