Apollo 2 Button Transmitter - 320n - Nice Apollo 433.92mhz Gate Remote - Nice Flo2r-s/a 2 Button Transmitter The Flor-S transmitter by Apollo is one of the most versatile gate remote transmitters on the market Since it is impossible to clone, its rolling-code transmission is 100% secure. Replaces models: 320N, FLOR-S, FLO2R-S/A, PML433FRA, 6140A-433FRA