Propane GasGenie® - Electronic Propane Gauge & BBQ Propane Level Indicator
Propane GasGenie solves one of the oldest problems of barbecuing: running out of propane while cooking.  It works by electronically monitoring gas levels in the propane tank.  When it detects that the gas is switched on and running low, it emits a tuneful sound and flashes its LED lights.  Propane GasGenie typically warns with 1-2 hours of gas remaining, so there is plenty of time to finish cooking and replace or refill the tank. No installation is required - just insert the batteries (included) and magnetically clip the Propane GasGenie to the lower part of the tank.  No need to alter any gas connections - it's ready to go!  Each time you use the grill,  the Propane GasGenie monitors the gas levels and will warn you when it's time to replace the tank. It is the only low propane sensor that actively warns you in time to finish cooking.The Propane GasGenie is covered by a 1 year warranty.