Designed for use with ThermaSol's Day Spa Series generator, this industry-first room in-use indicator simplifies steam room management. Place the indicator near a front desk or room attendant, with red and green lights signifying occupation status. The device can be located up to 100 ft. away from the steam generator, with flexibility to display 1-4 rooms along with a power-saving mode for standby operation. Location:Within 100 ft. of the generator