This is the Tusa SPG Combo Console SCA-270 with High-Pressure Gauge and Compass Features: Compact 2 gauge console includes a high-pressure gauge and compass Luminescent dial is easy to read in dark or low visibility 5000psi/400bar (4350psi/300bar max) pressure gauge and 200ft/60m depth gauge Gauge boot includes rings for attachment of BCJ hooks, etc. The SCA-270 is a newly redesigned compass and pressure gauge console is an ideal supplement to a wrist-type dive computer such as the IQ-650, IQ-750 or IQ-900. The console provides continuous air pressure, temperature and navigational direction in an easy-to-read format. Lightweight and efficient, the SCA-270 features a top and side view compass on the console. Both gauge and compass feature the luminscent light storage dials that are highly legible in dark or low visibility conditions. The entire face glows bright enough to make it ideal for night diving or diving in dark areas but contains no radioactive materials.