I do, and I use in on my Kamado, it works great.
I kept reading about how easy it was to set the factory vents and forget it, but I struggled to set and maintain the cook temps on mine until I installed the TTT device.
After cooking a ton of baby backs and pork butts mine got loaded up with smoke and grease and stopped working properly so I soaked it in vinegar and hit it with a toothbrush to free up the flapper, then it was back to normal.
Only problem was that I washed off the numbers which indicated the temp setting but at that point I knew where I wanted it set so no worries..