Vesper Monitor works with your on board Vesper Marine Cortex M1 device to monitor both the built-in Cortex sensors and other sensors on your boat that you connect to your Cortex Hub. - Setup is easy and free - Use the Cortex Hub’s built-in sensors for battery level, barometric pressure and boat position. - Connect your Cortex Hub to NMEA 2000, or an external sensor, to add monitoring for wind, depth, bilge high water, temperature, shore power or security. - Unlock your Cortex Hub to receive real-time sensor information, alerts and remotely control key circuits like air conditioning, lights or refrigeration. - Once you’ve unlocked your Cortex Hub you can also track your vessel, set geo-fence alarms and use Vesper Marine’s Award Winning smartAIS AnchorWatch to know your boat is safe at anchor.