tender for i year physics, chemistry lab items dept use-- 1 digital balanceweight 500g, accuracy 0.01g, top pan. tare function,caliberation- automatic external display type: led 2 digital tds meter range 0-9990 ppm, resolution 1ppm, digital lcd display, atc feature. 3 heating mantlecapacity: 500ml rating 200w with energy regulator 4 joule calorimetercopper vessel, battery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), thermometer (alcohol), stop clock 5 hotplateplate size:25 x 30 cm (10 x 12 inch) with adjustable thermostate controlup to 350 degree temprature controlheating element: nichrome heating elementpower supply: 220–240 v ac, 50 hz 6 electric bunsen burnermaximum temperature up to 800 degree c, power supply 220 to 240 v, power 350 w 7 water distillation unitoutput capacity: 2–4 liters per hourmaterial: stainless steel boiler and condenserheater: built-in electric heating elementpower supply: 220–240 v ac, 50 hzcooling: water-cooled condensersafety: automatic low water cut-off 8 ohms law verification kitbattery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), standard resistance coil of 1, 2 ohm (2-set) wound on a wooden bobbin = limited