tender for supply installation testing and commissioning of ultrasonic water level indicator at nehru nagar bps and dda flat sarai kale khan bps under jangpura constituency ac-41. , supply installation testing and commissioning of ultrasonic water level transducer ip 67 with lcd display suitable for underground reservoir/ sump tank with ultrasonic sensor for observing the water depth in meters/feet. the system is operated on 12 to 28 v dc (0.1 a surge) & the ultrasonic sensors operate on 4-20 ma. measurement accuracy 0.25% of measuring range, temperature range -40 to + 70 deg c, sensor material and housing in aluminium ((ectfe) and pp/pvdf respectively. the process indicator / controller having 4 relay outputs, contact rating 230 vac, 1 amp. the system should be configurable as control outputs on separate set points, with predefined logic with 7 segments led, 5 digits. supported by 4 key tack-tile keyboards. the system will have 4 relay outputs; contact rating 230 vac, 1 amp. configurable as control outputs on separate set points, with predefined logic, input will be 4-20 ma linear with resolution 4% digit. the supply will be 230 vac 50 hz & power output of 24 vdc 120 ma. power supply is made available for the external transmitter supply. the controller should be capable of giving out alerts through alarms to users if the water level in any of the tanks being monitored crosses the defined threshold value. the controller should have inbuilt power backup system. provision should also be there to connect to secondary controller for giving the same output at both the places. the controller should also give backup battery charge percentage. suitable length of power cable and signal cable should also be provided along with canopy for sensor and ms encl. for display. make:-eip/skope/ vega/ siemens/ any djb approved..