CAL 3300 Temperature Controller. The CAL 3300 1/32DIN temperature controller is designed to be easy-to-use and reliable within the most demanding process and manufacturing applications. Designed for industrial or scientific applications CAL3300 has an impact resistant smoked fascia with rubberised buttons with positive feedback. PID tuning is simple and efficient whilst the unique dAC function minimises overshoot. 1 x 4 digit LED display with 2 outputs LED Easy-to-use autotuning Simple menu-driven configuration Single ramp/soak (dwell) program IP66 protection CALgrafix datalogging software