TPMS + 12 AT Sensor

I see wildly different reviews on this product. Some give 1 start and others give 5. I have used the system since April 2018 on my GMC 350 and have zero issues. I thought I would comment on some of the reviews that I have seen. I believe I may know what is causing their issues.One guy shows a pic of a blown out tire and the system reading pressure in it. That is not likely. The system alarms in seconds if a sensor is removed (ie zero air pressure). It is easy as pie to test. Unscrew a sensor and you will get beeps immediately with a flashing tire showing what one it thinks is flat. Chance are his sensors were mixed up. One of them is probably reading zero. Just not the one he thought was on that tire. I suspect that at some point the sensors were mixed up and installed on different tires. The screw on type sensor have to be removed every time air is added. It is very easy to mix them up. They tell people to label them, but most probably don't or the labels fell off because they didn't cover them with clear fingernail polish like the manual suggests.I think a lot of issues are related to not knowing how to or not being efficient at programming the system. Programming is very easy if you follow the directions. There are a number of people that have great videos that walk step by step through it. I think the key is to program the sensors on your kitchen table first. Then take them out to the vehicle. It is easier than crawling around and trying to get to every tire and code it before the system times out. If the system times out the work is not saved and you have to start over again. I think that is the root of the problem for people complaining about having to keep programing the sensors over and over again.The next common issue I am seeing are people complaining about sensors dropping out while driving. RF interference will cause problems. If you have wireless cameras, refrigerators running, and other stuff that can generate RF interference around your vehicle it could cause problems. The way to solve that is by using a repeater. The repeater needs to be closer to the receiver than to the tires. Don't put a repeater in the very back of a 5th wheel and then expect it to transmit all the way to the tow vehicle. They recommend that the repeater should be installed in the front bay of the 5th wheel that is closest to the truck. Not in the back or middle. Metal can cause problems for it as well. The transmitter needs to be in a place that has the least amount of metal between it and the tires/receiver.I've seen people complain about the pressure readings. The EEZ RV guys have a video that talks about the valve stem and that the sensor needs to be able to push it in so air comes out that the sensor can read. In some cases those pushpins are in too deep and when screwing the sensor on it does not push them in at all or far enough to let sufficient air out to read. My bet is this is the problem for the ones complaint about that. This makes them think the batteries are not working and get frustrated when battery changes don't fix the problem. All it takes is a valve stem tool. Unscrew it slightly or replace it with another one. An easy test would be to screw the sensor you think is having problems on a bike or something else to test with. If it is getting a reading from another valve stem then chances are this is the issue.The only thing that I do not like is having to unscrew the low profile sensor every time I need to add air in the dual tires. They are very difficult to reach and unscrew. I can't put them in fast enough to minimize air loss either. The trick to get a good reading is to over fill the tire and reinstall the sensor. Let the system get a good reading, which will be high. Then slightly unscrew the sensor to let some air leak out. Screw it back on and get a good reading again. Going from high to low will let you get an perfect cold pressure setting. Most people fill to the exact cold pressure sitting and then when they screw the sensors on the tire pressure drops below the optimal reading. I am a bit tired of doing this though. I just ordered flow through sensors for my dual wheels. I believe it will be easier to put air in them. The front tires or ones with the valve stems facing out are easy.Speaking of tire pressure readings, gauges are different. Temperature makes a big difference in getting an actual reading. Most air gauges do not have temperature calibration. This is why the EEZ sensors may read different than a tire gauge. One guy mentioned that he had a calibrated racing sensor, but that doesn't mean it is temperature compensated. I have a Steelman 9797 (https://www.amazon.com/gp/product/B004IQ9I6O/ref=oh_aui_search_asin_title?ie=UTF8&psc=1) gage that is temp and pressure calibrated. It matches the EEZ readings exactly. The thing was $140. The only way to perfectly test the reading between the EEZ and a tire gauge is to use a properly calibrated gauge that takes into account ambient pressure and temperature.Another thing to note that I am not in love with his the anti-theft cover. Lots talk about this on here. I agree with them. I took them off. I could have left them on the front tires, but I don't think this is really that hot of an item to steal. If one ever gets snagged I may rethink this, but so far I haven't heard of anyone actually having their tire sensor stolen. They only work with the system they were purchased for. Every manufacturer has a different frequency and encryption.I have had zero issues with it on my GMC 350. I have driven it over 14,000 miles so far with the same batteries and sensors. The thing to keep in mind is that this system isn't just plug and play. It works perfectly if you take time and plan out the install. The main tip is to program it inside the house with every sensor on a table. Test it and get comfortable with how it works before installing the sensors on a vehicle. Problems are harder to troubleshoot after the system is installed.

Good product. Relatively easy to set up. Had a few questions. Their customer service was excellent. Quick response and made sure all questions were answered.Get your vehicle weighed and follow calculation instructions for best results.

The TPMS is accurate on pressure measurement and temperature. No leakage detected so far. As with most things Chinese, the directions are difficult to follow, leading to some re-doing. The system claims to operate on a 6 second cycle, which was a major feature for me. However, that is 6 seconds PER TIRE, meaning 36 seconds to complete the motor home, and additional time for any towed vehicles. That means it has virtually no ability to catch a flat in progress - which was the entire purpose.

This unit worked well on a recent 1000 mile trip. The set up is fairly easy to set up. The main issue I had was not leaving enough difference between cold static tire pressure and operating pressure psi. This led to a multiple (annoying) alarm several times during the first day of the trip until I could change the setting from 110 psi to 120 psi. Unfortunately after I changed the upper alarm pressure to 120 psi (or thought I did), I was annoyed the next day of the journey with the same issue. (I missed by one lousy psi and the alarm would blare each time the tire increased from 110 psi to 111 psi in the original setting). I then re-read the instructions to make sure I was doing this correctly but to no avail. The unit would not accept the reprogramming. So, reading the advertised 24/7 three year support statement furnished in the box, I called the "support line". I was greeted with something like:"This is so and so with EEZ and I'll be out of the country for 3 weeks with no cell service, but you can call "Donald" at blah blah...".Great. I'm in Nowheresville with sketchy cell service looking for answers. I called "Donald" 3 times in 12 hours and got voicemail each time. Donald did however call me back (probably assuming I needed to talk with him). Luckily I was in cell range at the time. "Donald" had a very heavy Asian accent and was very difficult to understand. Cell phones didn't help the issue either. It turns out that if you reset the operational parameters of the unit, you must press the "set" button after it defaults to the temperature setting. This I DID do, BUT you must hold it down for 3-4 seconds until it beeps. Just so you know if you run into the same problem... After this was resolved, the unit worked great and I never had to worry about it afterwards.Other tidbits:1. Make sure you check the tire sensor units for air leaks after installation. I had one tire deflate prior to the trip and resolved it by tightening and checking the valve stem for leaks with soapy water.2. The battery life is amazingly long.3. If you buy the "anti-theft" sensors, you can discard them if you don't want to mess with the issue of using the anti-theft tool when adding air to the tires. The "anti-theft" jacket is 2 piece and simply unscrews like a mason jar and can be removed. Then just screw in the sensor to the valve stem without it.4. The suction cup mount never moved or fell off the windshield in 14 days. I wish my Garmin unit was that good.5. The "support" line may be a guy working out of his garage somewhere. If you can get past that, the unit itself seems reliable.6. The monitor does not report tire pressure accurately. It reads about 5 psi lower than actual pressure. I have 6 tire gauges-3 of them are digital and 3 are analog. All read within 1 psi of the others. So either all 6 of my gauges are off or this unit reads "light". Keep this in mind when setting your high and low psi settings.

Generally set up & installation went well (instruction are OK). We use them on our Class-A motorhome and the towed vehicle. Quite often we seem to miss one or more readings on the RVs rear tires (dualies) and when towing our car we usually have to wait several cycles to get those readings & sometimes do not get readings on all 4 (I still need to install the booster though, so might be 'my bad').I found the 'lock nuts' to be a real pain in the towed car as I check/fill those tires regularly. I don't mind them on the motorhome though I also have tire pressure equalizers rigged on those and I don't have to adjust the pressure in those tires near as much due to the difference in vehicle usage.Not sure if the tire caps that have a 'fill thru' valve would have been a better choice for the car but I'll use what I have since I was a bit concerned with the extra size/weight of those.

i'm a *very* techie guy. Followed instructions to the letter. Tried numerous times over a few days. (Instructions: if you get an LF error, bang the sensor on the desktop !!??? Really? Are you kidding me?) After FINALLY getting all the sensors synced with the monitor (2 hours), i installed the sensors on the RV. Front drivers sensor was literally 7 feet from the monitor. Never once did i get a reading or response from the sensors to the monitor. Piece of junk and 5 hours of my life i'll never get back again. Returned. Thank goodness for Amazon Prime!!!!

I have them on my truck and 2 trailers. Work just fine on the truck and the 20’ car hauler but having issues with the 28’ holiday trailer ones. I only get readings on 1 and sometimes 2 tires out of 4 on the holiday trailer. Not sure what’s up with them.

Bought with 8 sensors Installed 4 on pickup and 4 on fifth wheel trailerTakes 10 to 15 minutes to sink sensors to module so don't turn module off if traveling dailyThe suction mount does not work find another way to mount itMet factory rep at Quartzite RV show 2019 and he knew that mount did not workHe gave me another mount from his booth

Used this to monitor truck and trailer tires. The system works very well, and since installed at this time last year has operated without problems for about three months of time on the road. Highly recommended for monitoring a travel trailer - one tire failure back there could wreck a wheel well on the trailer. Not to mention the cost of the tire and the possibility of an accident.

fonctionne très bien. Le seul problème avec 2 sur 6 avait une batterie défectueuse comme problème. Les batteries devraient faire au moins deux ans comme mentionné. C,est mon seul point negatif.