The System is designed to use on-site, so you aren't required to have computer or Internet access to use it. The handheld device can be plugged into multiple bins and can read data from up to eight cables per bin. The connector box easily mounts to the outside of the grain bins, allowing for convenient walk-up access. 3G Plus Cables in the grain quickly report temperature and moisture data from each sensor of each cable, helping you identify pockets of warmer or wetter grain. The system comes with a USB cord, car charger and carrying bag for your on-the-go needs. The handheld device is backlit, allowing you to easily check your bins at night. The system runs on a long-life lithium ion battery.