bids are invited for overhead stirrer - overhead stirrer having dual speed range of 0/150 - 6000 rpm along with timer (time setting range: 1 to 6000 min) and equipped with a rs 232 and a usb interface. should have overload protection & a digital display (to display speed, torque (for measuring viscosity changes) temperature and timer). all the necessary accessories including like temperature sensor (temperature measuring range: -10 to +350 °c), strap clamp for appropriate diameter (not less than 25 mm) stand for holding vessel of diameter 40-300mm, stirrer rotor diameter within 40-50mm and stable stand along with head clamp should be provided to make the equipment fully operational. total quantity : 1