3‑3/8in Speed Gauge GPS 200km/h 12V/24V for Ship Yacht Motorcycle Engineering Vehicle Item Type: Speed Gauge Material: Stainless Steel 316L Bezel + Anti-Fog Glass Fixing Dimension: 85mm / 3-3/8in Indication Range: 0-200KM/H, 0-999999KM Input Signal: GPS Signal Backlight Color: Red Working Current: ≤60mA Working Temperature: -30℃-+75℃ Storage Temperature: -40℃-+85℃ Dustproof Grade: IP67 Waterproof, can work underwater 1m / 39.4in position Installation Notes: 1. Open a hole with a diameter of 85mm on the panel (your cabin panel and instrument panel), insert the instrument into the hole, the panel corresponding to the instrument panel is marked with a boss, and open a small notch at this position, To ensure that there is at least 85mm (3-3/8in) instrument panel on the back of the instrument 2. After installing the instrument into the panel, screw down with the fixing ring 3. Connect the wires, the instrument shell is directly connected to the 12 / 24V power supply 4. Insert the wire harness and fix it firmly on the table How e: Install the instrument on the instrument panel and fix it, and then turn on the power Wiring Instructions: Red wiring - Positive Blue wiring - Negative Black Signal Wiring - Sensor Orange wiring - Backlight