Instrumental electronics provides offers a blind temperature controller, series 100. Series 100this offers supplies a very economical way of controlling temperature with sensors such as resistance bulbs [pt-100], thermocouples [j, k, r and s], mv, ma, etc. Set point setting is with the help of graduated dial and a cursor knob. Accuracy is better than 1% of full scale. Control output of the blind temperature controller is either on/off or proportional, with a relay of contact rating 6 a/230 v ac. This temperature controller it is available with or without deviation meter, indicating the deviation of controlled temperature from set point temperature on either sides supply requirement is 230 v ac +10% or 110 v ac +10%, 50 hz. The configuration of series-100 is given by this is housed in a plastic enclosure of the dimensions 96 x 96 x 150 mm.