Review on 🔋 Tymate Solar Tire Pressure Monitoring System with 5 Alarm Modes and 4 External Tmps Sensor by Scott Lavimodiere

I've seen reviews that the main unit does NOT go to sleep (no display), my unit goes to sleep and usually wakes up when I close the car door. My problem is that of the 4 seniors (the free one should have been sent as a free gift with my purchase but hasn't received it yet) they don't seem very calibrated. I add air to my cold RAV4 before a ride to cool 33 pounds while driving a block constantly reads "slow" for what better term. On 3 devices I can see the tire temperature and air pressure change while driving and it seems to me that everything is fine with accuracy, but the 4th device may not register the same as the others until 15 or minutes pass if it ever does is. Of course I would be grateful for a replacement. Update January 3, 2021: I've been very happy with this TPMS, but I use it as a tire pressure reference and not an accurate tire pressure measurement system. What I am writing about is technical support. I had a problem and the technical support solved it in a very timely manner. Thanks to Victor from Technical Support.