quick smartcraft question

[Foxfire]

I am looking to buy a mercmonitor and am curious what the difference between the level 1, 2, and 3 monitors is? I just want to make sure that I get the "troll control". Is that found in the level one unit?

anyone know what the different levels mean? My local merc dealer hasnt even sold one from what I can tell...

thanks

[boats.net]

Level one kit has NMEA 2000 ECO Screen and gateway
Level two has NMEA 2000 Smarttow RPM kit
Level three NMEA 2000 Smarttow pro kit
or Level three NMEA 2000 Gateway premier kit