This is the Apeks SPG Console with Compass Imperial or Metric Options Features: Tough brass housing with glass lens Housed inside a protective rubber boot Nitrox Compatible to 40% (The Recreational Limits of Nitrox) Luminescent face is easy to read in dark or low visibility conditions Temperature Display Oil Filled Depth Gauge Compact 2 gauge analog console Easy to read dial design Apeks&'; range of quality, accurate and stylish gauges and gauge consoles includes this compact and unique Pressure Gauge and Compass combination. The pressure (contents) gauge offers a range from 0 to 360 Bar (or 0 - 5000 Psi in imperial). The compass is designed for ease of reading and diver comfort.