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

No internal battery so no cumulative odometer, time, etc...All data returns to zerto when powered down.

My only complaint is the size of the print on the manual. I had to use a magnifying glass. Finally found a pdf similar to this device on the internet. Works good.

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.

Decent price but there are two problems. The display is impossible to read in bright sunlight and the speedometer is GPS based so the displayed speed is merely an estimation. It can be off by as much as 8 MPH.

Depending on where you mount this it can be difficult to see in the middle of the afternoon.

My speedometer in my 86 Chevy c30 doesn’t work and this product made it a easy non mechanical fix.

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 !!!

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.