U912 Tire Pressure Monitor System TPMS Real Time Pressure Temperature Monitoring 4pcs RF Sensors Internal/External Default Slot 5 Year Battery (for Mazda, w/4pcs External sensors)

Received and installed today. Took about 30 minutes to wire it directly to fuse block using a jumper from AutoZone. The fuse that came with it didn't seem to fit well. I have a 2008 Toyota Sequoia Platinum with over 300k and got tired of seeing low pressure light and not knowing which tire was low.A note about the fit of the monitor. PERFECT FIT! Check out my pic. It's flush in the panel and seated as expected. It even looks factory up close.I followed the instructions and powered up the monitor before installing the external sensors on the tires. It started beeping. I assumed it was because the sensors were reading zero before installation.The sensors are labeled for which tire they are for. Once all sensors were installed, the beeping stopped.Before I installed each sensor, I used a decent air pressure gauge to measure the tires. I am happy to report that each sensor matched the readings I took before installation.One minor issue was tightening the nuts underneath the sensors. It wasn't until the last tire that I tried bending the included wrench for earlier access. This worked much better. I think it is more likely these nuts will help with keeping the sensors attached, rather than anti-theft.I will update this review if anything changes my opinion. But as of right now, I think this is an incredible product and has delivered as promised.

They come programmed right out the box. The moment you start getting air in the tire after mounting it starts reading the pressure go up.I advise getting the receiver powered on before install of the sensors. So you can see which side that sensor is programmed too without having to adjust.I've had them for a while and they're great with stable readings. Only thing is they seem to read around 2 psi higher than what they're actually at. Compared with 4 different tire pressure gauges.

I bought the internal type sensor for a land Rover defender project while I was adding new rims and tires. These sensors work great and are dead on accurate when checked against my calibrated air pressure gauge. Work well and if getting new tires then easy to install. Highly recommend them. There are not too many choices available.

Most other add-on TPMS systems look clunky on your dash, windshield, or power outlet. This looks way better. No wires running over the dash and no fire hazzard from a lithium battery baking in the sun.I got the Toyota kit with internal sensors for my 05 Prius. The display is smaller than the blind hole, but I knew that from the dimensions in the description. This fits newer Toyotas fine. They switched to the smaller blind around 2007. I cut the ends off the original cover to fill the voids.I recommend getting the internal sensors. It's a hassle to install them, but it can be done without going to a tire shop (YouTube it). With the external sensors, it's a hassle to get out the little wrench and remove them every time you need to add air. They're also a high risk of leaking and I doubt anyone really likes how they look... My only problem with the internal sensors is the "replaceable" battery. I cannot find anything close to this battery in all the internet (see pic). It's the largest battery I've seen in a tire sensor, so it should last longer than most. If not, I'll have to rig up a more common battery to fit.I thought the sensors were reading the wrong pressures, but it was my cheap digital air chuck that was off. The sensors are within 1 psi of an accurate gauge. It's been working great so far.

Great product. The pressure reading is very accurate. Only thing is the fitting comes along does not work well and I have to use some creativity to get it mounted to my car. Other than that, I think this is the best solution for its purpose.

Constant beeping even after pairing to the sensors. Sensors are always giving different pressures and wont stop beeping. I have to manually turn them off to make the sharp noises go away. I wish I could return the product but it is too late. Just don’t buy this for your car. Save yourself the trouble

The media could not be loaded. After measuring and double checking to make sure the monitor would fit in the car, I went ahead and purchased the item but what the seller doesn't mention is that the fuse has to be the right size, as the wire is soldered to a fuse. So now I have to resolver the wire to a different fuse for it to work.

I tried the external sensors but they were too large for me so I ordered a kit with the internal sensors instead. Had the internal sensors installed over the weekend at a tire shop. I wish the display unit was a little less "decorated". It also does not sit flush like the factory switches do and sticks out about 1/8" or 2mm. The display doesn't seem to "snap in" to my dash. It does on a '18 CR-V though. :)There's no dimming of the display for night driving. That's something that would have been nice to have. An internal light sensor would have made this a little better without adding another wire to hook up. I might add a layer of window tint and see how that does.Overall, I look forward to using this kit. I might see if there's anything I can do to help it fit more flush with the dash opening.