We recently had a hair straightener get inadvertently left on for almost 24 hours. As can be seen in the attachment, it only spends about 12% of the time actually on and cycles on and off approximately 45 times per hour to maintain temperature. As far as I can tell, there’s no way to configure an alert to tell me that the hair straightener has been left on. One way that this might be done would be add a “duty cycle” option to the alert system. That is, if a given device is on greater than some percentage of time over a defined time interval, then trigger the alert. For instance, in this case, I’d like to get an alert if the hair straightener is on more than 8% of the time over the past hour.
Another way I’d like to do this is to have a duty cycle alert on my water pump, which is connected to a shallow well and can run dry when a faucet or toilet runs out of control. The pump refills a pressure tank, so is also on intermittently. A duty cycle alert would hopefully reduce the chance of the well running dry and the pump losing its prime, which is highly inconvenient and an unwelcome expense to have it reprimed. (That would certainly help with the ROI on the Sense device.)
Of note, this wouldn’t necessarily require a different class of alert. As far as I can tell, the existing alerts essentially correspond to a 100% duty cycle. The UI could just default to that level.