The Glow-worm SR 52 Repeater is a radio signal booster designed to extend the RF range of the MiGo Link internet gateway to the MiGo Select thermostat. It ensures reliable communication throughout an entire property, particularly when the MiGo Select (SRT 51F) thermostat is outside the immediate range of the MiGo Link internet gateway (SR 940F). The SR 52 repeater transmits radio commands, maintaining strong connectivity for smart heating control.