Propane Tank Monitor and Leak Detector
The Gas Watch is an inexpensive utility item that definitely solves two problems most people have with their gas grill - how much gas is left in the tank and detecting a gas leak.

We have a great Weber gas grill and it does have the lever system that holds the propane tank in place and is designed to measure the weight of the gas tank and display the fuel level. This system, however, has never worked for me. I am always trying to estimate how much gas is left in the tank based on how much grilling I've done. Totally not an accurate method, so much so that I've even found myself at the hardware store with a practically half-empty tank.

