1-channel white polycarbonate touch transmitter. Frequency: 433.92 MHz. Modulation: AM / ASK. Coding: Keelog Rolling Code. Compatible with all CDVI® receivers. Visual and sound signaling. Dimensions: 105 x 70 x 23.5 mm. IP55. Operating temperatures: -20ºC to 80ºC. Power supply: 1 x ER14505 Lithium battery.