Zone alerts: know when something enters an area
Ships, vehicles or any moving item crossing your zone.
Zone alert remembers where each item was the last time the flow ran and reports the ones that entered, crossed (went through between two runs), are inside or left a zone. Draw the zone or use the Area of interest.
It is made for things that move, such as ships from the Ships (AIS) block or vehicles from your own webhook. Test runs do not move what it remembers; only real runs do.
Templates that use these blocks
Ships entering my zoneAn email when a ship enters or passes through your zone, every hour.Cruise ships arriving at the portAn alert, with WhatsApp to the guides, when a cruise ship enters the port.Offshore supply boats at the base, every eveningSupply and service boats at the base each evening.Ships stopped off the coastShips stopped off the coast that entered the area, every hour.