Smart propane scale tracks cylinder refills
Flame King’s smart propane scale links wirelessly to a cellphone to track the weight of a propane cylinder, telling the user how much time remains before having to refill the tank. The Flame King app can store the weight reading with a time stamp to keep track of how much propane was last recorded in the cylinder. Compatible with iPhone or Android, the app provides weight readings for 20-pound cylinders. It can also track 30- and 40-pound cylinders with an in-app purchase, according to the company.

Photo courtesy of Flame King