Convenience second to none. With the FFB 1 SL and FFB 2 SL remote control units, you can control your electronic instantaneous water heater DHE electronic comfort SL very conveniently - immediately at the device or by wireless commands. The multifunction LCD puts all important values such as temperature, throughput or energy consumption right in front of you. All convenience functions, such as the ECO key and the shower programs for good health can be directly selected. For the wireless remote control FFB 1 SL, the receiver module for integration, the wireless remote control and the wall retainer are part of the standard delivery. The wireless remote control unit is waterproof, which means you can also install it inside the shower cubicle. With the FFB 2 SL, you can even combine up to six remote control units with one DHE electronic comfort SL.