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

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.

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 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.

I don't leave reviews often, but this is a great product. I've had this product for 4 years now. I have used it on 3 different trailers, and the batteries are finally needing to be replaced in the sensors. I have probably 15,000 miles of towing all over the United States. I've towed 20 and 22 foot trailers behind HD trucks and even a 28 foot motorhome and the sensors have connected with the head unit. I have only plugged in the main unit a few times. I just leave it in the dash where the sun can charge using solar and it's always ready to use. This product has exceeded my expectations time and time again, and I have recommended it to many people. The pressure readings are accurate, and the range of connectivity is excellent. The price, quality, and performance is excellent for what you receive. If this one fails I will purchase another without any concerns. It provides a lot of value information and provides piece of mind when towing trailers .

I purchased this unit for my 26 foot RV trailer. As I installed the sensors, one by one they appeared on the screen. All seemed well. Once I was done, I put the unit on my dash - In the direct sunlight as recommended to use the solar feature and I immediately realized that the screen was pretty much impossible to see in the direct sunlight. I then left the unit on while I left the RV in the storage lot. I drove the entire 20 miles back home and the unit continued to display the sensor readings. Clearly this was incorrect, but this presents a major problem. I contacted their support folks are reviewed these problems. They claimed that yes the screen is hard to read, but 'you don't need the screen as if there is a problem with lost air, it will beep'. Hmm, that's reassuring. Then about the lack of disconnect alerts, that was also explained away is not a problem as they will keep the last reading until they reconnect. Well yes this is a problem if they don't ever reconnect. And for that matter, how do you know if they are connected or not? I was told not to worry about it. Well, when I went back to tow the RV, I put the unit on the dash and turned it on. It never was able to read the sensors that were probably 25 to 30 ft away. When I took the unit out of the truck and walked them back by the sensors, they connected. I then brought the unit back to the dash and the sensors continued to read - so I thought. As I'm driving down the highway, I'm noticing that the tire readings are not warming up, and none of the readings are changing as they should. So I turn the unit off and wait a few minutes while still driving and turn it back on. No connection. So the entire time, it was just reading the connection values when the unit was back near the tires, but never let you know that it lost the connection. So how would you ever know if you are indeed connected in the event you have a lost air condition. Unfortunately, the business knows these are mission critical problems rendering these things as worthless for their intended purpose, and spends a lot of time trying to convince people that the concerns are unwarranted. This is going back. Total waste of money. I just cannot fathom that folks are rating these Tymate products so highly. They simply don't work, but folks probably don't even know it, which is a huge issue. Avoid.

What a great product to have available for you RV. When you have 6 tires., it become impossible to monitor your inside tires. This product is a Quick Look see while underway.

Product was on the small side, I found it hard to see while sitting on my dashboard. Installation was simple Worked good, however the directions on programming alerts could have been better. This product is lightweight and unless you tack it down it’ll slide off your dashboard, it did come with a little sticky pad for that

VERY easy to install. Charge the display first, using a USB charger and the included light-gauge charging cable ONLY. The light gauge cable protects the display battery from over-charging. The animated battery indicator in the center of the display will stop moving when the battery is charged. Leave display on, so it will pick up each sensor when you perform the following steps: When the display is charged and ON, carry it out to your vehicle. Place it on your dash. Remove your old valve stem caps. Then, using a compressor, slightly over-fill your tires by a pound or two before installing the following over each valve stem: 1) rubber cup/sleeve (if included) with cup facing outward, then 2) brass lock nut. 3) Quickly and firmly spin the CORRECTLY LABELED SENSOR (LF = Left Front, RR =Right Rear, etc.) onto the appropriate of each of the 4 tires. That speed and firmness minimizes pressure loss. Do not over-tighten. 4) While holding each sensor against rotation, rotate the brass lock nut counter-clockwise with the included wrench against the snug, but not tight, sensor. When the lock-nut is snug, 5) Gently pull the rubber sleeve (if included) over each sensor. If no sleeve was included, you are done.* Edit. 1/2024. There are no longer any rubber valve stem sleeves. When all 4 are installed, you are done. The display will update shortly. This is my fourth set for my cars. First set works great and I did not want to swap it into the second car. Make sure to have the solar panel on the dashboard top display facing the sun, to avoid discharging and lowering the service life of the built-in battery. In the Sunbelt, keep it off the dash during the heat of the day. So be prudent. If you don't expose the display-top solar panel to "some" sun daily, the display WILL self-discharge. In that case, bring the display into the house and charge it occasionally. Enjoy! This system is of real value. It will alarm if the tire pressure is too low or too high. It lights up at night and will further light red in addition to beeping if you have a tire pressure problem. HIGHLY RECOMMENDED!!

Very easy to set up and been working really well.

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

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