Create a virtual safety net with these small beacons

CrewWatcherCourtesy CrewWatcher

Nothing’s worse than a man-overboard situation in rough seas or low-light situations, and while they can’t always be avoided, they can be resolved — thanks to CrewWatcher, an app-based overboard alarm system made up of a small beacon worn by everyone on board and a ­smartphone app. If someone goes over the side, an alarm will sound, and the app guides rescuers to their lat/long via the phone. No cell service or Wi-Fi is ­required; the system utilizes Bluetooth 4.2 and GPS.

Price: $169 per pair