• The GPT-A2 is a multifunctional, portable and waterproof transceiver (with transmitter, receiver and repeater functions) for the GPT Poseidon Tracking System. This system incorporates real time GPS tracking with the ability for on site and/or remote monitoring, and with built in automated alerts (if a transmitter is located too close to a vessel, or out of a predefined range, and if a signal hasn't been received for a set period of time). A diver can also activate a distress signal directly from the GPT-A2.
• The GPT-A2 does not consume electricity when shutdown.
• The GPT-A2 can also be used as a transceiver so that all team members in a given activity can simultaneously monitor each others safety.

• The GPT-T3 is a transmitter for the Gpacers Poseidon Tracking System. It's extremely mobile and waterproof, and designed to be carried by divers and used in conjunction with the GPT Gpacers Poseidon Tracking System App. This system incorporates real time GPS tracking with the ability for on site and/or remote monitoring, and with built in automated alerts (if a transmitter is located too close to a vessel, or out of a predefined range, and if a signal hasn't been received for a set period of time). A diver can also activate a distress signal directly from the GPT-T3.

• The GPT-T3 features positive buoyancy, allowing the diver to release the GPT-T3 (when tethered) to rise to the ocean surface to transmit data.

• 5 Power LED indicators on the GPT-T3 together with the rechargeable battery make it very convenient and user friendly.

• Battery life is up to 72 hours on a single charge.

• The standalone GPT Poseidon Tracking System can be used on site or remotely, to track and monitor GPT devices. 
• Signals are sent from GPT transmitters every 10 seconds
• The GPT Poseidon Tracking System App has user defined automated alerts (if a transmitter is located too close to a vessel, or out of a predefined range, and if a signal hasn't been received for a set period of time). A diver can also activate a distress signal directly from a GPT device.
• The range of transmission can be extended greatly by increasing the height of GPT receivers. Installed at a height of 3m on a boat, the coverage extends to a radius of 7km for transmitters located at sea level. In an emergency the receiver can be installed on a helicopter or drone, to extend coverage over hundreds of kilometers for transmitters located at sea level.
• Different from personal satellite distress transmitters, the GPT system can perform both on-site and remote real-time monitoring of the entire team for the duration of the activity.
• Compared to AIS, the GPT system can be easily inspected, thereby ensuring it works as intended and when needed. Also the AIS receiver is usually not portable and confined to a fixed location on board a vessel, unlike the GPT receiver which is portable and can easily be secured on a drone for example, to greatly increase the range.

To sum up, the series of products in the GPT system are lightweight and easily portable, and the GPT Gpacers App (available on iOS and Android) incorporates real time location monitoring and built in alerts to prevent any accidents. The receiver can easily be affixed at high altitudes to vastly increase the range. Lastly, divers can also directly activate a distress signal in an emergency, and all these functions are easily monitored on the GPT Gpacers App, either on site or remotely.