The ALTA USB Pro gateway allows your Monnit Wireless Sensors to communicate with the iMonnit online wireless sensor monitoring and notification system or Monnit Express standalone PC software. If the PC has an active internet connection and you wish to use it with the iMonnit online software, install the Monnit Gateway application to pass sensor data to the online system. Simply plug the device into an available USB port on a Microsoft Windows PC. The MonnitLink USB Pro Gateway also allows for integration with other online communication devices.