bids are invited for gas monitoring system upgradation supply of cc type gas sensors , supply of gas transmitter , supply of sensor mounting stand , supply of field terminal unit , supply of flame proof and water proof junction box , supply of ftu mounting accessories , supply of flp hooter , supply of flp on off switch , supply of fourway flp juction box , supply of mimic repeater panel , supply of modified gms software , supply of modified ciu card , supply of three quarters inch et cable gland , supply of 3core x 1point5 sqmm frls copper cable , supply of 2core x 1point5 sqmm signal cable , supply of 100mm gi tray , supply of surge protection devices , erection installation and commissioning sensor mounting access , erection installation and commissioning sensor and transmitter , erection installation and commissioning flp ftu enclosure , erection installation and commissioning flp hooter , installation testing and comissioning cpu mimic and software , installation testing and comissioning flp gland , cable tray installation , laying cable , installation testing and comissioning gms system , level) with pump - combustible sensor detector (catalytic type) (iocl) total quantity : 3810