Universal Water Temp Gauge Temperature Meter Electronic Blue Digital LED DC12V 2inches 52mm for Car Automotive(Fahrenheit)

I feel this is very accurate. I located my sensor in the top radiator hose so I know what the temp is of the coolant as it is leaving the engine headed towards the radiator. This also tells you when your thermostate opens, mine should open at 192. This is relative to where the temp gauge reads. If I am hauling a load the temp goes up slightly with in 2-5 degrees. People complain the temp gauge doesn't read below 104, Why do you need it to read below 104? The gauge isn't going to read right off until the coolant is warm over 104 and the thermostate STARTS to open.The CONs I had was the wiring harness is too short, could have been 6-8 foot long and you could cut as needed. Currently harness is 12 inches long and you have to extend them. The other CON is the wires are like 22 - 24 gauge, very small to adapt too but it can be done. I broke my joints the first time had to resplice them. The Housing is all plastic, not a game changer for an old everyday truck but for a classic I wouldn't use it. Also not recommended for direct outdoor use with No cab or protectionOther than the three CONS, good gauge for the money. You got to be smarter than what you are working with. If you are installing in line in a rubber radiator hose the sensors body has got to be ground for the gauge to work. I would recommend it if the situation is RIGHT.

The gauge works as it should. At first it only read 104..wouldn’t move. Amazon was going to send me a new one. Then I read the reviews and saw the same issue, as well as others. I figured it was maybe user error. So I used a new wire between the sending unit and the gauge. Then it read higher temps as the engine heated up. Noticed that the gauge would jump around a bit higher ,then lower. Ran new wires to serve this unit only where as before I was using existing wires from another gauge.That was the problem. Works great now. So in my case, and maybe some of the other bad reviews…was due to user error.

The gauge works well, my only issue is at night when im outside the city. The gauge is super bright and it doesnt help that its blue so i cover it up or place ist where its not shining in your face other than that city driving its not bad and read accurate enough to tell me whether iam overheating or not. Good buy overall.

I installed this yesterday (3/29/24) and it worked great for about 20 minutes, then the two numbers on the left got super dim and eventually stopped working at all. Now it only reads one number and I'm not sure if it's the sensor or the gauge. Just go to AutoZone and grab the universal gauge they have typically on the shelf, this one is junk. If I could leave 0 stars I would.

Used this on my old 1995 Buick Century to supplement the factory gauge.It works like a charm! Very happy with this purchase. Easy to install, but keep in mind you'll likely need to cut into a radiator cooling hose to add the splice. You'll need to order a radiator hose adapter. Amazon has a great variety of these and they're priced very right (cheap).I would recommend buying it.

I have to agree with all the other posts on the in accuracy of the reading. The first picture is the gauge in question reading 201° degrees, the second is a gauge that I bought at a local auto parts store (AutoZ...) The same day I ordered this gauge. Although the analog Gage was not much different in price I do hold a different trust in the analog and as you can see it's reading about 10 degrees difference. The analog gauge also reads the same as my infrared gun and both of the temp sensors I ran into the thermostat housing and sit about an inch apart so there should be no difference in temperature. I also agree with the other post on the brightness. They need to make an illumination adjustable setting because it is dangerously bright. I actually took another reviewers advice and use a piece of leftover window tint 2 Dole that light down a little bit and it did work but I would much prefer to have it hooked up with my other gauges to my dimmer switch so that everything dims at the same time at the same level. Other than that easy to install and I like the looks, also wish that they came with their own pod or bracket for mounting.

Seems to be accurate according to my scanners live data feed and a infrared heat gun temp actually advances faster than the PCM reads. Display is bright and warning light lights up at 212-213 degrees Fahrenheit. Install can be difficult depending on the vehicle. The only thing that I didn't like is the temp gauge starts off at 104°F before it starts to read.

I like this item because it gives me immediate specific temperature feedback. I installed it in a 1929 Model A Ford and those cars can easily overheat when driving for long trips. With this digital meter I can see the direction the temperature is going and can adjust my driving immediately to control the engine temperature. With the old needle you can not see any small change in temperature. By the time the position of the needle shows a change, you would have to really change how you were driving in order to avoid a problem. With this gauge a passenger never even knows I've changed driving habits.