Abstract: Electronic control circuitry for transmitting electrical communication between electrically controlled equipment employing timing or display means at a first location, and at a second and remote location for the continuous exchange of electrical power and control signals betwen equipment at each of the locations and where two single wire connectors provide the sole electrical communication between the said locations.

Abstract: A tanning studio having a tanning system, including a main control console for operation only by an attendant and a remote tanning room control for operation by a patron. A module is provide which both displays and sets the time remaining on both the console and the remote control which time is below an identified safe maximum time inherent in the system. The console includes means to only input the initial time remaining for use of the equipment, while the remote unit has means to only actuate said equipment. Both units contain means to clear the remaining time for use of the equipment Z and extinguish the lamps and a down timer for continuously displaying the time remaining.