M20 Solar TPMS with 8 Sensors

I ordered the GUTA system back late in the spring. Did not install until several months later when I put new tires on my Class A RV. The unit functioned for about an hour before the monitor screen failed. I was deeply disappointed as I emailed customer service. To my surprise I received a response two days later that a replacement was in process of being sent. New unit arrived several days later. The system requires some effort to install on the dual rear wheels. Took a major trip the next week. Roads were very rough and the system performed flawlessly. I highly recommend this unit on the customer service alone. It is nice to be able to monitor the tires in real time and have the ability to see a problem starting instead of dealing with losing a tire at speed in such a large vehicle. This unit is good value for the price point. For those interested in further details, RV is 39’, GVWR is 24,000 lbs. I have the 8 sensor set and plan to put the other two on the car dolly, but they may be too far away to function without the repeater unit.

I like that I have not had to run any more wires up onto my dashboard. So far this little unit has really been great. It's especially great on long trips so I only have to look at the readout vs checking all 8 tires. Amazing how sensitive the unit is to turn on when the slightest truck vibration occurs, for example, when I get in gently it turns on. The sensors were marked and all I had to do was screw them on in the correct location and they all worked without any set up. The lighting of the panel is good at night, and I hope I can see it OK on sunny days with my aging eyes. I truly like that I can see all 8 pressures on the screen at the same time. When I am not pulling the trailer, the trailer data will go blank after a short while and it doesn't scream and yell at me about that. So far I am very happy. Several trips, well over 1000 miles so far.

while I didn't have a flat, I made a 3k mile trip with a big horse trailer. I didn't even set the limits yet, just kept an eye on inflation and temps. nice. I don't think the temp thing works that great. I had one heat up a little. I noticed it at a stop, but the sensor didn't pick it up. but it wasn't smoking hot, just warmer.

Monitoring system worked great out of the box for a travel trailer. This last trip air leaked out of valve stem causing a flat. Recognize that these are too heavy for the valve stems for long trips. Put the spare on the travel trailer continue to destination only to have it happen to a second trailer tire on the same trip. Return home and now a truck tire valves them had to be replaced. Three of these failed on the same trip all related to the weight and the bouncing causing valve stem failure.

We purchased this unit in July 2023 with 8 sensors for our truck and toyhauler. It has been a life-saver in terms of knowing when tires get too hot running in summer heat and loss of air pressure on another occasion. Both times we avoided potential blowouts and time to exit freeway and find a safe place to change tire before tire was flat. I would not hesitate to purchase this unit or brand again. We’ve experienced no battery issues or connectivity with sensors and unit easily stays charged thru solar panel. The stickers have worn and I wish I could get new ones but not offered here. If unit wasn’t working so well, we’d definitely upgrade to the color screen version with flow-thru sensors.

I've been using this for several months. No plug needed the solar does it all. I pull a trailer and it hooks up flawlessly.

I installed this a week ago, then took it on our first shakedown cruise of the year. Installation was not difficult. Register every sensor with the receiver once, and you're good to go. The pressure indicated was the same as my handheld gauge. I bought the 8 sensor unit to cover my pickup and my 26 foot two axle towed RV. The unit says it will cover 36 feet, and in the driveway not moving it was capable of picking up the trailer which is closer than that. On the highway, I had frequent loss of signal from all towed wheels. The repeater arrives today, so I hope that problem goes away. Changing the set points is done per axle, which is fine. One surprise to me was the high pressure set point, which cannot be set below 100 psi. Since I assume most failures result in loss of pressure, I guess this is not a practical limitation. The solar charging is a really nice feature in a vehicle already powering a GPS and remote backup camera. The trigger alarms work as advertised as I learned when I opened the cab to a screaching unit on a cold winter morning. The temperature sensing is implemented as a scrolling per wheel feature, where the temp is displayed as the wheel in question flashes in the display. The display is clear and bright and comes with a non slip pad that allows you to just slap it on the dash and forget it. Edit: I am updating my review after my latest long trip. I have found over time that the receiving unit for this system has a tendency to lock up. You're driving along, and all of the sudden you realize that the TPMS is no longer updating. The display is static with whatever values it had when the unit stopped updating. You can't reset it - it won't respond to any button presses. Applying external power has no effect. You have to put it in a dark place and wait for the battery to die. While this was mildly annoying, during this last trip through northern Californian I just completed, it was catastrophic. Did my trailer tire warn me before it shredded? I'll never know, because the TPMS was unresponsive when it exploded. The passing motorist who honked at me to catch my attention was the only tire warning I received, but by then, the damage to my trailer was already done. Fortunately, I have a tandem axle. I won't rely on a product from this manufacturer again for my critical safety monitoring.