damaged screen sensor with power supply unit of johnson make lift no. 04 installed at govt. super specaility hospital, jammu.-replacement of the damaged screen sensor (weco) with power supply unit of johnson make lift no. 4 installed at ssh jammu. job includes disconnecting the power supply to the lift, dismantling the old / damaged screen sensor and then replacing the damaged sensor with new sensor of the same specifications and make. job also includes testing of the sensor for smooth operation of the lift.complete job includes cost of material, skilled labour charges for replacement of damaged screen sensor labour charges and other tools and tackles required for the execution of the job and all taxes etc.