unidirectional / learning with red LED, compatible with transmitter models BHS110, BHS140, BHS130, BHS221, BHS 221, BHS153
2-channel
incl. battery included
NOT COMPATIBLE WITH THE OPTICALLY SAME MODEL BDS120 2-command, 868.3 Mhz incl. battery CR2032 for Berner door operators with radio frequency 868.3 Mhz