Using bi-directional text messaging technology, the UDI system allows divers to transmit pre-saved messages to other divers in the network, at a range of up to 500 meters (550 yards).
Divers can create up to 14 text messages, based on the needs of the team.
The messages are created on a PC, on a special frendly software - a part of the product.
When a message is sent, a received signal activates an audible alert and lights up the graphic LCD screen to notify the recipient.
When received, an acknowledgment is sent.
Messages can also be transmitted between individual units and the boat unit.