Ltpgtturn the boiler on or off remotely from anywhere via your smartphone heat the home before you arrive or turn off the heating to save energy if you are going to be out lateltbr gtltbr gtltpgtltulgtltligtload 3000wltligtltligttx transmitterltligtltligtrx receiverltligtltligtremote controlltligtltligtradio frequency 868mhzltligtltulgt