ThermoTrack by Anytrak is a plug-in replacement for all analog tanker thermometers. It is powered by a solar panel and rechargeable battery and it is simple and quick to install without any wiring. It contains a digital thermometer, GPS module, 4G modem, digital display and a backup battery which is recharged by the built-in solar panel and allows up to 60 days reporting when sunlight is not available. The digital thermometer connects to the inner tanker shell via a well probe or lug cable and it monitors temperatures from -58 ◦ F to +257◦ F.