ILX Lightwave (Bozeman, MT), a Newport Corporation brand, announced the addition of the LDT-5940C Thermoelectric Temperature Controller to its portfolio of thermoelectric temperature controllers designed for testing laser diodes and other optoelectronic devices. The LDT-5940C features 60W of temperature control, an intuitive front panel, and standard GPIB and USB 2.0 remote interface. This new temperature controller with digital PID control loop achieves temperature stability of less than ±0.003°C with output current noise and ripple less than 2mA rms. For fast setup, the LDT-5940C incorporates preset PID values and a fast auto-tune PID mode that automatically determines optimal PID values. The LDT-5940C is compatible with a wide range of sensors including thermistors, RTDs, LM335, and AD590 IC sensors.