Programmable two wired transmitter from Conax has got a design that is microprocessor based. This device can enable full configuration as it makes use of configuration software that is user friendly. The input to the device is in the form of Ohm and it has higher rate of accuracy. It makes use of 3 wired connection and has the provision of programming the sensor error - value. There are 1 or 2 channel versions of the device. It is used for measuring linearized temperature and can also convert changes in linear resistance to analog current - signals of standard format.