Steca TR-A503TTR-U with 3 PT1000 Sensors
Steca model TR-A503TTR-U differential temperature control with digital temperature display, programmable functions for solar thermal systems. Hard wire, 110 or 220 volt input. Allows for five inputs and will control three outputs. Three probe sensors included. Allows for flow meter input and displays BTU produced by system and hours of operation. Has slot for mini SD memory card and will interface with Steca router for instantaneous remote monitoring. One mini SD memory card is supplied and installed in the control.