Connects and controls external sensors. The Settop M1+3 is a powerful accessory for Settop M1 that increases the possibilities for many types of applications (Machine Control, guidance, dredging, pontoon (boats), precise platform positioning, etc). The new system is flexible, rugged, light, and can easily be carried from site to site. The Settop M1+3 CAN BUS allows synchronization of external sensors, uses up to 3 GNSS antennas and increases x 6 the number of COM ports (RS232, USB) Ethernet and Power Control. The Settop M1+3 can be configured and controlled via the internet.