This is based on the PT100 Daughter board ,which is a daughterboard specifically designed for the DuetWifi and the DuetEthernet that allows two PT100 temperature sensors to be attached. These PT100 sensors can be either two or 4 wire,but it is two wire in normally.
The DuetWifi and DuetEthernet support up to two daughterboards, with a further two on a Duex2 or Duex5 expansion board, with 4 daughter boards a total of 8 PT100 sensors are supported. Thermocouple and PT100 daughterboards can be mixed and matched.
1x PT100 daughter board