"I don't care how smart your dryer is, if it catches on fire it's not going to do shit." Basically all of these are caused blocked ducts, which is trivial to ma

"I don't care how smart your dryer is, if it catches on fire it's not going to do shit." Basically all of these are caused blocked ducts, which is trivial to make smart by including a flow/pressure meter. It's basically 100% detectable. If you are worried about failure of sensor, this is a field where they use sensors in ridiculously contaminated and abrasive environments (material handling, etc). "Lint" is neither. (compared to what else we use flexible tube to handle as a material) So you can simply prevent the fire in the first place. Much more so than pretty much any other appliance.