The SCA-120 is a simple pressure gauge ideal for divers using a wrist-type dive computer like the IQ-650, IQ-700 and IQ-800. The console provides continuous air pressure. The pressure gauge features the Lumi-Nova luminous face. TUSA is the first company in the world to incorporate Lumi-Nova light storage dials, a groundbreaking innovation offering several times the brightness of conventional dials, as well as longer luminescence times. The entire face glows bright enough to make it ideal for night diving or diving in dark areas but contains no radioactive materials.