iaq measuring instrument , electrical items : , measured parameter by instrument = volume flow / air velocity, pressure, radiant heat, co2 features of instrument = system shall be operated both from mains & battery run minimum of 6-8 hrs. internal memory ( min 2 gb ) to store readings s.no parameter tender specifications 1 type: main and batteryoperated portable iaq instrument system should be configurable & up gradable as per the userrequirement magnetic mounting for easy operations instrument shall have minimum ofmain camera: 8.0 mp &camera: 5.0 mp provision for data transfer to pc / laptop. 2specification of iaq data logger type: compatible portable iaq data logger measured parameter by iaq data logger compatible with probes formeasuring comfort level, radiant heat, co2, air flow velocity, humidity, and temperature along with date & time features of instrument data logger configurable via iaq instrument connect to six fixed cable probes at the same time stand-alone data logger for long-term measurements up to 2 weeks universal iaq instrument ( and the iaq data logger ) , a maximum 1 million readings shall be recorded. 3 specifications of rotating vane probe for air velocity measurement including temperature sensor: type: vane type vane diameter:100 mm range:up to 35 m / s, ( min: 0.3 m / s ) accuracy:± 3 % of reading cable length:min 1meter temperature sensor range / accuracy -20 to +70 °c / ±0.5 °c 4 specifications of additional probes: probe for measurement of ambient temp, abs pressure, humidity, co2 temp range / accuracy:0 to +50 °c / ±0.5 °c humidity range / accuracy: 5 to 95 %rh / ±3 %rh abs pressure: up to 1.1 bar co2 range 0 to 10, 000 ppm co2 cable length:min 1 meter 5 accessories tripod tripod with provisions to hold the and probes ( including tripod bag ) system case hard carrying case with provisions to accommodatethe instrument 6 infrared thermometer • infrared thermometer for measuring temperature of objectsurface. •should be gun type with trigger / button for operation. •temperature display unit should be degree celsius and degreefahrenheit, with interchangeable modes. spectral range 8 to 14 ?m •measurement range infrared: -30 to +400 °c •lcd display with back light •accuracy infrared: ±2 °c •two adjustable alarm limit values ( lower & upper limit ) •battery life continuous use 10 hours