Allows for your Infratech heater to be turned on and off as well and allows you to adjust the heat output of your heaters. This unit also has a timer that allows you turn it on within 15 minutes and 4 hours with a total of 5 time settings. 4 heater elements can be controlled by one analog control. A matching relay panel is required to be ordered to complete this package. The relay panel will have varying amounts of relays from 1-5. Each relay can control up to 9000 watts. This cannot exceed 4 elements per analog control. If more heaters are used a larger analog control will be required. This control must be installed in a covered/protected area.