STEEL MATE Universal Wireless Tire Pressure Monitoring System, LCD Screen Displays 4 Tires' Pressure 0-75Psi, 4 Advanced External Tmps Sensors, Real-time Alarm Function(Cigarette Lighter Plug)

Edit #1(written and submitted on Dec 28th, 2021): Originally I installed these and I kept having the sensor being weird with the front right tire, saying it needed air while the others were fine. I thought I might have had a defective unit or something. I did some tests and came to the conclusion that there must be a puncture that I couldn't find in the tire. Scheduled a tire check with Toyota and they said they found a nail in the tire and plugged it and I didn't need to replace the tire (thankfully). After that I bought a new TPMS from Steel Mate just to give them the best shot of it working. Turns out the nail in my tire was the problem and it's been working great since! Decided to postpone this review by like over 2 months to make sure it's working and not just temporarily.The set-up was easy, albeit a bit time consuming but what would one expect? It was sorta difficult to get on while the hubcaps were attached to the vehicle. Since, as far as my understanding is the hubcaps are only their for a very slight added protection and aesthetics, I just removed the hubcaps entirely. It's a whole lot easier to put air in my Toyota Corolla now. I'll admit, I "lost" the wrench, searched my car a bit including the center console, trunk, glove compartment, and side doors. I contacted support because I have an upcoming maintenance appointment(tire rotation) scheduled this week* and wasn't sure if I could remove it without the special wrench. They sent an email asking me to provide the address so they could send a replacement, presumably free of charge. Though, I ask that you don't assume they'll just send you a wrench free of charge 100% of the time. It could be a case by case basis or something like that. Regardless, I don't want people thinking "oh they gave/were going to give this one guy a wrench free of charge so I should get one too". That's not how that works.***Written on Tuesday, June 8th, 2021. (I had this review ready then but posted today, June 28th, 2021)**Disclaimer: I did contact Steel Mate regarding my review prior to posting this review. I did not send them the review, not did I need approval to post this review. I am not sponsored by Steel Mate. I did feel though that because they were about to send a wrench free of charge to me even though I lost mine, that should earn a review. The ONLY part that I asked Steel Mate about before posting this review is that I told them my review would have me talking about how they were going to send a wrench free of charge. They didn't correct me in my assumption that the wrench would be sent free of charge, and I did offer to buy another one as compensation but they told me that wasn't needed. They also told me that I could include the part of sending me the wrench for free even after explaining my reason for asking them is that I don't want people to just believe because they were about to send me a wrench means that they'll get sent one if they asked. That is just simply not necessarily true.

Worked great for 3 months then a sensor no longer sends signal (battery good and tested)

There were a couple of times when I was driving around unaware that my tires were low on air until someone pointed them out to me. With this device, I now know when any of the tires on my 88 pontiac are low in psi. The disadvantages are the readings can be off by plus/minus 3psi and the device has to be screwed on tightly to the value stem or a slow leak can develop.

I bought this in June and installed them around then.Before actually putting these to full use I did a tedious test. Before installation, I deflated all four tires of my vehicle to a low psi rating of around 15-20 between them and measured them with 2 different gauges, a digital and a dial gauge were used. And then proceeded to install the TPMS while following the instructions. Once installed, the TPMS did read very much accurately on all four tires. I then unscrewed and then screwed the TPMS back on again after I reinflated the tires to the recommended PSI rating and once again the readings were accurate.And now today Sept.21, 2021, the TPMS alerted and indicated that my rear right(RR) tire was low, indicating 20 psi at the time, and then about 8 hours later after work it went down to 14 psi. I then had my inflator reinflate back up but not before reading the accuracy that the inflator was also reading 14 psithis reassures me that the TPMS is indeed accurate, not perfect but at the very most 90% of the time.Now, I have to find the source of the problem with the said tire.

I bought this for my 2005 Ford Ranger. Installation was easy enough, if you read the instructions though just remember that they were probably translated from Chinese so some words might not make sense but for the most part its easy to understand.After installing the sensors and plugging in the display I noticed the pressure was in BAR and not PSI, this made me a little bit upset. But after careful thinking and reading the instructions I finally found out how to switch it to PSI.Then the next day I noticed one of my tires were low, i filled it back up and the same day it lost its air again, I checked everything and came to the conclusion that it was a defective sensor that was causing the air leak. I requested a replacement and returned the defective set. No leaks anymore so it must've been that one sensor that was bad, it happens.Overall, I like the product. It starts beeping when a tire pressure gets too low, and it also measures the temperature of the air in the tire. The display turns off automatically when tires are not moving, which is good because in my 2005 Ford Ranger the cigarette ligher plug stays live.A neat little upgrade to an older vehicle that doesn't have sensors in the rim.(Update: I've had to replace this product because one sensor had caused my tire to leak air. After the replacement the sensors were working fine but the same thing happened, one sensor started causing an air leak. I will have to try a different product.)

First picture was for the first order and I got 10 psi when all tires are at 36 psi.Second picture was a replacement order and it read 7 psi when it should be 36 psi.I’m returning for the second time.

I'm very impressed with this TPMS. I didn't have a great experience with a previous brand, so I wanted to give Steel Mate a shot. Glad that I did! It works very well and very accurate. You get a new reading as soon as the vehicle goes over 15mph. The other brands provide pressure updates after five minutes... what? This is a must have accessory for my vehicle. I am one year short of the mandate to have TPMS installed. I have a 2006 Toyota Camry and I have to say it works great. Thank you Steel Mate!!!