AUTOMETER ULTRA-NITE OIL TEMPERATURE GAUGE -- 2-5/8 in.; 140 to 280 degrees Fahrenheit; Includes 0.5 in. NPT fitting; No provision for lighting; Features water resistant case for quick cleaning, unique anodized blue casing, and luminescent dial needs no power connection; Requires steel hose; Recommends gauge panel, mounting angle ring; For off road use only; Replaces part number 2253.