Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
A hot air balloon will have a variometer, which displays the rate of ascent or descent, a pyrometer, which details the temperature inside and outside of the balloon, and an altimeter. You will also find a gauge on each fuel tank to indicate fuel level and a gauge on the burner indicating the fuel pressure.
