Review on 🚗 Enhance Road Safety with 5.5" Universal F4 Car HUD Display- Speedometer + Speed Alarm for Cars & Navigation by Kham Fisk

Okay let me explain, the instructions are really very strange and clearly translated into coarse English and quite difficult to understand. BUT if you get the settings right and go through the 4 MILLION settings it has and take your time, this thing works really well. You'll have to do a little trial and error to find out. It's also very responsive to revs and speed, especially when you set the polling rate to maximum (that's how fast the gauges update, so turn it all the way on if you can, it's actually fast enough to flip the toggle with the stick shifter). I have in my M3) I've had two different things like this one and this one is actually great even with the problem I'm having when I start the car it shows nothing but 0 so I unplug it and plug it in on again and voila, it works. I believe there is actually a setting for it somewhere, but I don't know what the value actually does, so I don't know where to set it. The speed, temperature, RPM sensor and digital RPM readings are actually very accurate and IF YOU USE A REFLECTOR (just use it) the brightness is actually pretty good, adjusting fairly quickly and showing a clear image with no ghosting , if you really like it 1. On the spot on your dashboard where the entire image fits into the reflector's frame, I placed it in a few places so that the two corners of the reflector touched *then leaned back and made sure it fit the entire screen* to find the optimal spot. To be honest, although I really like it and the price isn't bad at all, I'll say it's worth it. Actually it does what I expected. Pros: Updates are fast and accurate at a precise rate, as the digital readout on my actual DashReflector reflector barely matches the entire display, not too large, and I've moved and pasted it multiple times with no issues. I have options to adjust. Good brightness even with the roof down on a sunny day (not amazing but still really decent). One of the ONLY displays that actually hits 8000rpm on the gauge and is really accurate, all the rest runs up to 6k or 7k which isn't enough for my Redline M3 at 8400rpm. Has a flat cable that long and actually very easy to hide. It's $35, you face the street, and it has LARGE clear lettering. Cons: Lots of settings that don't specify how they're configured. For example speed is like 107 but up does what down does. the? and gas at 20 like what does that mean? A little difficult to set up. I had to turn off the speed beep and all other beeps because they are really annoying. front does not fit because the dashboard in front of the steering wheel is round and. Spring. it's not, he's not going to sit there, so he's a little to the right. I can't figure out how fuel works so I turned it off. worked every time.