[Electronics-Talk] Would a light probe with this?

[Star Gazer]

			Question for you guys. I vape marijuana and yes, I do it legally. I sometimes use disposable vapes and they have a light on the bottom end that lights up when you are getting a hit. That isn’t the problem, the problem is that the light *not* coming on seems to be the one sure way to know the vape is done. 
This matters because I do use this for medical reasons. One thing the weed helps with is panic attacks brought on by a miscarriage. I’ll start to panic, vape, not feel better and wonder what’s going on and it’s always the light, the vape is done. I’m wondering if there is a light probe that will tell me what the light on the vape is doing?