These stylish panels are fitted with accurate Longacre Sportsman mechanical gauges which are 2 5/8" (57mm) diameter and feature a backlight with LED illuminated pointer for optimum visibility day or night. Each gauge features a separate warning light to provide a visual alert to low pressures or high temperatures, removing the necessity to have separate warning lights.2 5/8" (67mm) diameter mechanical gauges with integral warning lights which change to colour of the face to alert of low pressure / high temperatureBlack scale on white background with red needle for ease of reading at a glanceMechanical operation so minimal wiring required for installationGauge Options -Oil Pressure (OP) - 0-100 psiWater Temperature (WT) - 100-280 deg FOil Temperature (OT) - 100-320 deg FFuel Pressure (FP) - 0-15 psiPanel Dimensions -2 Gauge: 8 1/4" x 3 5/8" (210 x 92mm)3 Gauge: 11 5/8" x 3 5/8" (295 x 92mm)4 Gauge: 15" x 3 5/8" (381 x 92mm)Suitable for any 12-16v negative earth system