Does the DB15 connect to the RTD on the Phoenix™ or Tempe™ head?

As part of an earlier product design, the DB15 connected to an RTD sensor inside of the sensor head. Following a redesign, Colnatec products no longer employ an RTD. The new thermocouple design has contributed to achieving much greater accuracy. With a K-Type thermocouple, Colnatec sensors can regulate the actual temperature of the sensor body to +/- 1 degree°C.

Colnatec sensors still use a DB15, which is now equipped with a branching cable that connects to TC1 for temperature regulation.