Tymate RV Tire Pressure Monitoring System - M7-3 TPMS Tire Pressure Monitor System(0-87 PSI) with Solar Charger, RV TPMS with 4 sensors & 5 Alarm Modes, LCD Display, Auto Sleep Mode, Easy to Install

Very easy to set up and been working really well.

The unit is really easy to setup and use. I fully charged the Head unit which didn't take all that log, using the provided USB "C" Cable and should stay charged from here on using the built in solar cell on the unit. The unit was already "Paired" to the already configured sensors. LF, LR, RF, RR The only reason my rating isn't higher is for the following. 1. The sensor for the RR would display any info. Turned out that the battery on the sensor was dead, I checked it with a battery tester. 2. The enclosed manual says that the sensor battery is a CR2032 which it is not. it is a CR1632 which is a slightly odd unit to get at your local store. 3. All the sensors were active and powered on, using / draining the batteries while sitting new in the box. 4. The unit does not turn itself on or off. If you don't turn it on, you have no monitoring or alarms. If you leave it on for long periods of time, it may be dead if the sun isn't strong enough or you have parked in the shade etc, once again leaving you without monitoring or alarms. One thing I'm interested to see is how long the Lipo battery holds up. Usually in low cost items like this the LIPO battery is on of those inexpensive bag types that doesn't take heat or especially freezing temperatures without being killed. UPDATE I have left the unit turned on for several days in a row. Even in low lighting, like overcast days, its still enough to keep the units battery charged. so that is one concern that is resolved, Update 2025/12/30 I now have 3 units on 3 different vehicles and they all work great and there is no issues with one unit reporting to the wrong vehicle.

Expensive and low speed when switching ON the instrument to identify the four sensors.

This tire pressure monitoring system (TPMS) works awesome and is worth every penny - it saved us from a flat tire or worse, a blowout. As we were preparing for our first trip, I was reading a lot about the dangers of a blowout, and we had friends who experienced one and lost control of their trailer. I read several recommendations to buy a TPMS, but I didn’t know how much value it would add and I wanted to save on costs. This one seemed to get the best reviews for a ‘try it’ price I was willing to spend. We use it all the time, and I really like it’s low profile on my dash, and that it recharges itself using its solar panel- no extra charging cords. I do wish the display was larger, but I do prefer the low profile, so that’s the trade-off. That being said, I have no problems reading the display of all 4 tires while driving. I was surprised the pressure reading is pretty accurate! I didn’t use a digital gauge for comparison, but it seems to be within 3-5 psi, and that’s good enough for me. I don’t know how accurate the temperature reading is, but as long as they all read as expected and close to each other, that was good enough for me. For the price point, I wasn’t expecting something incredibly accurate, but as I mentioned, it did a good job with pressure; I was mostly looking out for abnormal readings that would alert me of a problem, and I felt like this TPMS really delivered above my expectations. The other thing I really like, is the ability to set low and high limits for pressure and temperature. After reading some articles online, I set my alarms accordingly. I’m glad I did! On our most recent trip, all of a sudden the alarm went off telling me the pressure in one tire had dropped below the threshold I had set. At the time, I didn’t fully trust the accuracy, so I stopped and manually checked the pressure- sure enough it was accurate and had dropped. I checked for leaks and finding none, I refilled the tire and continued driving. Once again, the alarm went off and a manual verification confirmed the reading was accurate and the alarm justified. We refilled the tire and drove to a tire shop as quickly as we safely could. They found that the wheel had a hairline crack (?!) which was causing the small pressure leak. We exchanged wheels and went on our merry way - no drama. We were so relieved! We are convinced that if it wasn’t for this little TPMS, we would’ve never known we had a small leak (who would guess a crack in the wheel?!), until we had an unfortunate event and had more drama than we wanted on our road trip. Tymate tire pressure monitoring system saved the day!

I bought it last April and i just start using it now, it doesn’t work