Electronic differential temperature control with one differential setting, 1 collector sensor, and 2 tank sensors.

Illuminated digital readout (in F or C) with user friendly menu operation capable of managing one collector field and

one domestic hot water storage tank, 2 control relay outputs, 4 sensor inputs, and 3 system configurations.

Communicates via Vbus with optional equipment.

4-1/4 inches wide - 6-3/4 inches high - 1-3/4 inches deep