Shows a blue screen. Mine isn't. Color is faster for the brain to recognize.
From the top. This is the 3rd tpms I bought trying to change the factory settings. $60, 140,150. My '99 Cobra didn't come with one. Flat front and flat spare, wife's car, was the prompt. Couldn't find a 5 sensor tpms. Why? Had to buy a 6. Now I can't set the spare, but I may be able to. On to support.
All these tpms systems should be odd numbers. No one has a spare tire? Bet it's flat because no one checks them either. I can change one long before road service shows up.
When I had my 5th wheel, had a 20 sensor tpms. 4 tires plus 6 tires, plus two spares =12. When I had a 3 axle cargo trailer, had two spares on the trailer, =13. Back in the day, my 18 wheeler had zero tpms. 😕

I bought this to use on my single axle small trailer. Reading about trailer tires, I have learned that proper pressure is even more critical than with car tires. They are also more prone to rapid pressure loss / blowouts. A TPMS can at least provide some margin of safety against those problems. Internal systems are expensive to buy and then must be mounted inside the tires, another expense. The external system addresses both issues. Within the constraints of an external system, this product works well. I give it 4 stars, knocking one star off for being a little inaccurate and some other quirks. Overall, it's a good system and at this price, I will keep it.

Pros
Very easy to install and use. You take off the dust cap and mount a sensor in its place with a dust cover and locking nut behind it.

The monitor is a nice size, large enough to read but small enough to just sit on the side of my dashboard.
It is solar powered so no batteries and no necessity to hook up to a power though a cord and plug are provided if you choose to do so.

Cons
Not perfect accuracy but to be fair, probably within the specs provided. I checked each tire with a known gauge. Two sensors are about 2 pounds low while a third was pretty much spot on. I used the third one on the spare tire and am not using the fourth.

To preserve battery life in each sensor, they are motion activated and then only transmit if there is a change in pressure (and I think temperature). That makes sense. However, that also means that you cannot check the cold tire pressure before heading out. I'm told with trailer tires this is important to do. The only way to check the pressure is to unscrew and remove the sensor, check the pressure, and then remount the sensor. You lose a little air as you take it off and then again when you remount it. The instructions say you really should check with soapy water when you install a sensor to make sure you don't have a leak. You are also supposed to loosen and then re-tighten the locking nut behind the sensor. Note this is not a fault of this system as I assume this is the case with all of these externally mounted monitoring systems. I wish there was an override button on the sensor to manually get it to send a reading. That would make it easy to check pressure while still retaining the protocols to enhance sensor battery life.

The motion activation and only sending a signal for significant changes also seems to lead to unpredictable first reads. On my initial trip that was on a smooth interstate, I got the first tire reading after about 10 minutes but the second tire reading didn't show up for nearly an hour. The reading for the spare was closer to 90 minutes after I left. If I knew the pressure was correct when I left, i suppose that would be ok, but as noted above, you don't know that unless you take off the monitors and check with a gauge. In my view, the system should be set up to send an initial reading at motion activation. That would also let you know that system was in fact working. This system does not do that.

I camped in Colorado at a high altitude (8,600') with cold nights. When I left in the morning after a few days, I assumed the pressure was lower. I didn't bother to check since I had no way to add air anyway. In this case, all three tires reported right away as I drove out the dirt road within the campground.

I've read that there may be external sensors with pass through channel that allow pressure checking and adding air. That might be an option to consider.

Conclusion is that while not perfect, this system does give me some peace of mind that i will notice if a tire is rapidly losing air. For $60, that's well worth it. I'll continue to look at other systems for future consideration.

Great first experience. Not complicated to set up and price is great. Bought a set that was 3 times as much and had to send it back.

I will update if it goes the other way.

Overall I think the Tymate system is good. I never got a chance to see it work during a tire incident (thank gosh). My biggest concern of the system is the non-replaceable display box. Mine stopped functioning after a hot day being in the car. I contacted the seller and I will need to buy the whole set again.

It was easy to setup my min and max settings. I had a few false positives while I had the product, which scared the crap outta me while driving and hearing their alarm tone, phew. I appreciated the non-slip pad that was included with it. Didn't stick to the dash, just made sure it wouldn't slide.

Overall it's a fine system. I just don't like that the display box seems fragile in a hot car. Not sure I'll buy another system or try a competitor.

It was very easy to set up. I was worried if it could handle car washes and rainy days, but it's held up just fine. It is loud beeps to push any button which is kind of annoying, but not too bad. I still feel like the price is a bit high for all little it does. Unfortunately, I still need this since my car won't share this info.