Review on 🚤 Reliable Waterproof Boat GPS Speedometer: 52MM 0-999 MPH Km/h Knots Digital Marine Speed Odometer with Oil Pressure & Fuel Level Alarm - Ideal for Car, Truck, Marine by Richard Cunningham

I recently had it installed on my '92 Camaro project car because the previous owner gutted the old stock sensors. Overall, this is a reliable, working speedometer at a good price. The connection is simple, 3 wires (power, backlight and ground) and the GPS unit has a LONG cable. Too long for what I needed it for. The cable is about 7-8 feet long and the box is small enough to hide somewhere on the dash. The downside is that the box has to be oriented in a certain way or the signal will work.