Redwood viscometer multiple apparatus[2501] it consists, three red wood no.1 cups and one red wood no.2 cups total 4 nos. Of cups are installed in the bath: the bath is made from brass/s.s. Sheet the temperature is controlled by electonic digital temperature controller. The stirring is done by fhp electric motor in the heating compartment. The unit has 4 sets of oil cup covers, thermometer clips and ball valve. Suitable to operate on 220 volts ac circuits.