supply of set of pneumatic gauges , set of pneumatic gauges for crew friendly cab for conventional locos typ e wap-4 & wag-7 and wap-7 & wag-9 (3 phase) locos consisting of 4 items: (1) 4 single air pressure gauge self illuminated with led (back lit type) flush mounted for brake pipe 1 209- 18.306-225 alt.1, 2nos/set. (2) 4 duplex air pressure gauge self illuminated with led (back lit type) flush mounted for bc1 & bc2, 1209-18.306-224, 2 nos/set. (3) 4 duplex press ure gauge self illuminated with led (back lit type) flush mounted for mr & fp 1209-18.30 6-223, 2nos/set. (4) differential gauge self illuminated led (back lit type) flush mounted, 1209-18.306-226 alt.1, 2nos/set. as per clw specn.no. clw/ts /99/cf-3 alt-5 and clw drg no. (1) drg.1209-18.306-225 alt.1.(2)drg.1209-18.306.224 (3)drg.1209-18.306-223 (4) drg.1209-18.306 -226 alt. 1. [ warranty period: 60 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]