Liquefied petroleum gas storage tanks typically use a glass mercury thermometer with a protective metal sheath. You can also use remote thermometers such as thermocouples, resistance, and pressure.
Safety: Keep away from anyone other than liquefied petroleum gas workers. site visitors and others not involved in the installation. Use non-smoking electronics or park near the fuel tank. Signs such as “No Smoking” must be prominently placed and unoccupied.