Schluter DHERR2/BW Ditra Heat E-RRS Power Module Relay For DHERT105BW Thermostat
Connect this E-RRS power module (expansion unit) to the Ditra E-RS1 smart heated floor thermostat by joining the thermostat AUX 1&2 ports to power module AUX IN ports. It results in a high-efficiency Ditra Heat flooring heating system.