A geofence area around your anchor can be set. When you switch on the anchor alarm and set the perimeter, you will be notified immediately whenever there is a drift outside the designated area.

Benefit over Anchor alarm mobile apps

A variety of mobile apps offer geofencing and some of them are even designed for boaters. Mobile apps use the mobile phone's built in GPS to detect drifting from a preset position. Although convenient, this approach has some serious drawbacks:

  • Mobile device needs to be on a boat to make this work. Forget taking your phone to the restaurant while leaving an anchored boat in the bay
  • mobile phone's GPS is not as precise as boat's GPS antenna
  • having access to boat sensors guarantees unbeatable advantage to a enhanced anchor alarm like Sentinel's