Eurotherm 810 is a microprocessor based temperature controller with a 9-bar LED display. It has three control modes: slow cycle time-proportioning, fast cycle time-proportioning, or on-off. The Eurotherm 810 has two alarm outputs, each with a relay contact rated at 1A/264V rms. It also has an isolated DC output, a logic output an unlinearised 0-10V or 0-5V analogue Retransmission output. The setpoint can be adjusted digitally or via an external 10K potentiometer.