Sansel instruments & controls, offers temperature controllers in various models. It contains four-digit micro controller-based linearised and high accuracy levels. The selectable inputs are j, k, r, s, t, and pt-100. These controllers avoid the power jumper selection from tc to rtd conversion. It will operate through key programming and configuration. For easy operation, it contains on/off switches, time proportional and auto tune pid. The universal supply of this controller is 0 to 270 ac.