Versatile benchtop digital heating controller can be used in three ways: in on/off mode with the hysteresis loop controlling power switching, as a PID controller, or simply as a temperature measuring device using a probe. Sample temperatures are displayed on an easy-to-read LED display. Included PTFE-covered thermometer probe is suitable for measurements up to 250C or order optional temperature probe 32587-98 for measurements up to 800C. There is a 5-pin DIN socket on the controller for the probe. Rugged zinc die-cast outer housing is suitable for benchtop use or wall mounting. Rear clamp accepts a standard 1/2" (12.5 mm) rod to mount on a support stand or frame. .