Reference:
REM2
Compatible with StayD function (2.0 or superior). 868 MHz Transceiver frequency. Shows the system status through LEDs and beeps. Status button allows to know the system status. Up to 6 differents actions by the remote. Compact and waterproof design. Label to identify the remote user. Range of the wireless signal in standard conditions: MG6250: 30 metros; MG5000, MG5050, RTX3: 45 metros. Not compatible with SP4000.