Product details:

Completely self contained with an internal GPS antennae. Real time monitoring of current driving speed, viewable max speed & adjustable over speed limit 24 hour clock Real time batter voltage Standard 2 3/8" (60mm) gauge size Simple positive and negative wire connection This one model can be used on almost anything with voltage between 12-24 volts DC which makes it great for: Boats with outboards & inboards Lawn and garden Farm impliments & tractors Cars & trucks 4-wheelers Motorcycles Snowmobiles Specifications: Dimensions: 2 9/16" wide (65mm) wide & 2 5/8" (66mm) deep, requires a 2 3/8" (60mm) hole for mounting Speed display range - 0-999 MPH / KMH Speed accuracy +/- 1. 25 MPH Voltage accuracy +/- 0. 5% Adjustable over speed alarm 24 hour clock Includes full installation and programming instructions Includes 1 gauge with wire harness & rear mounting bracket with nuts Features: New premium Venom brand WATERPROOF 12-24v backlit GPS speedometer / volt meter / clock. Easy connection to 12-24 volts with internal GPS antennae Requires a standard 2 3/8 " (60mm) mounting hole Real time monitoring of current driving speed, viewable max speed & adjustable over speed limit Simple positive and negative wire connection.