• Mains-independent, battery powered electronic PID controller with two-position output.
  
• With digital 7-day time switch for 24-hour, working day, weekend or 7-day mode with up to 3 heating periods per day.
• Self-learning 2-position controller with PID control (patented).
• Straightforward, self-explanatory menu selection via roller selector.
• Selectable operating action: heating or cooling.
• Optimum start control for the first heating period.
• One temperature setpoint for each heating or cooling period.
• Remote operation.
• Override button.
• Sensor calibration and reset function.
• Limitation of the minimum setpoint.
• Holiday mode.
• Periodic pump run.
• Color of housing front: signal white.
• Color of baseplate: light grey.

About 3 months before the batteries are exhausted, the battery symbol appears on the display, but all functions will be fully maintained. When changing the batteries, the current data will be retained for a maximum of one minute.