LandAirSea has gone above and beyond in helping me with the numerous questions I have had over the months I have used two of these outstanding devices. The service department is absolutely thee best group I have ever had for a product that is backed up by years of service. They have been spot on with every advice they have given me. The devices track beautifully and almost within just a few feet. Even out of state, during rain, wind, severe snow and ice. Unfathomable how well they perform. I could go one for awhile about their products, but you won't be disappointed at all.