ACECARDigital GPS Speedometer, Universal Car HUD Head Up Display with Speed MPH, Compass Direction, Fatigue Driving Reminder, Driving Distance, Altitude, Overspeed Alarm HD Display, for All Vehicle

Works great! Multiple settings and configurations to suit your needs. I attached this one to accessory power so it is only on when the battery is engaged or the engine running. I am using double sided tape to hold this to the top of my dash right above and to the right of my steering wheel.The only reason I am not giving it 5 stars is it is a little difficult to read in intense sunlight. The LED display just cannot output enough light. I suggest the next version have a small shroud around the top and sides to create a little permanent shadow on the display. As it stands I am going to try and fabricate something out of a plastic sheet and a heat gun.

A nice little unit. Seems to be a good value for the price. A little hard to set-up, and the instructions are in extremely small print.

So much good stuff with this unit. Suction power for mount is excellent ! It has the newer style double cup base, so when you install on windshield it stays there ! Unit takes maybe a minute to find satellites average around 12 to 15 satellites acquired 19 most I have gotten. Have checked accuracy against known good speedometers is right on the money ! The display is a backlit segmented display (not sure of proper name) all the different parts of display are visible and only the ones selected are backlit. I use speedometer, compass and # of satellites available. Has a clock but I never got it to set (I didn’t read instructions!) Unit has one button on top used to cycle threw all available display options. Unit has power cord (no power supply) has to be plugged into a usb power source. Display is ease to read with my 67 year old eyes with no glasses on. Last but not least unit is very affordable I paid $27 and change (had a coupon) so I highly recommend this unit !!!

I used it on my trip 3 states south. I liked having it closer to my line of site. I sacrificed windshield site for the device. I found myself fumbling with the device to access the proper screen which seemed to be difficult to get to when your eye is supposed to be on the road. The device became a nuisance, so I just removed it.

This unit works well and has just the features I was looking for:* speed* compass* automatic dimming* altitudePros:* easy-to-read 1" numeric speed display* uses USB (5V) power rather than 12V as some other units* compass is graphic and easy to read with all 8 directions* optional displays are each selectable: compass, speed "gauge" bar, number of satellites, blue numeric display* automatic dimming at nightCons:* speed "gauge" bar is not really usefulThis unit is small enough that it can just rest on the dash. I needed a GPS speedometer because the instruments in my VW EuroVan are very hard to read in bright sunlight.