The PT100 Daughter board is designed for the Duet 2 or Duet 2 Maestro. This expansion board allows upto two PT100 temperature sensors to be attached. PT100 Temperature sensors can either be 2 or 4 wire. Jumpers are on the PT100 Daughter board to switch between the two.
The Duet 2 and Duet 2 Maestro allow upto two daughter boards to be installed with a further 2 on the Duex2 or Duex5, so upto a total of 8 can be connected. PT100 and Thermocouples can be mixed and matched.