Thermotouch 4.3dC is an electric underfloor heating control with an extra 5Amp relay output. This enables you to control your underfloor heating and towel rail from the same controller with individual switching times. Thermotouch 4.3dC can also be used to control your mirror demisters. The Thermotouch 4.3dC is designed to control both your heated towel rail and your underfloor heating using the one controller. This timer allows you to have individual programs for each whilst reducing the number of controllers on your bathroom wall.