What Tire Monitoring System to get?

Having just done this, I will offer the following: price..? Queries seem to indicate that they all work as described. Warranty..? 1 year, 3 year, lifetime. Features..? Some you set the high AND low psi alarm, some are Factory set within the “box” , seems that most have a hard set temp alarm. Better ones come with a separate repeater booster. I went with the Tire Traker. With it you set your base psi and it alarms at 15% under and 25% over your base setting. It will sense rapid or slow psi drops and will alarm. It was easy to program. 7 day a week support, I tested this with a question last Sunday, and they did answer the phone! Make sure that the Xmitters have replaceable batteries. Flow through seem to stick out too far, and to me anyhow just present another place for leaks.