Outback RTS (Remote Temperature Sensor) The RTS remote temperature sensor is important for accurate battery charging, especially if the batteries get very warm or cold. If used with a HUB, one temperature sensor can be shared by all inverters and MX charge controllers. OutBack model OutBack MATE system monitor and control Item code MATE System control – shipped with a 50 ft Cat 5 cable 030-04180 MATE-B Black version of MATE above 030-04180-B MATE2 Flush-mount version 030-04181 FlexNet DC Advanced DC System Monitor - requires a MATE 030-04187 HUB-4 Stacking kit for up to 4 inverters and/or charge controllers 030-04185 HUB-10 Stacking kit for up to 10 inverters and/or charge controllers 030-04188 RTS Remote temperature sensor with 15' cable 030-04190