The most trusted name in aircraft instrumentation now offers the OASIS®, a new Electronic Standby Instrument System (ESIS). This system replaces multiple mechanical gauges with one highly reliable, highly accurate 4-inch diagonal display. The modular system architecture allows installation flexibility in already crowded instrument panels by separating the Display Unit (DU) Aerosonic Sensing Unit (ASU). The display unit’s thin design fits in the smallest and most shallow panel spaces while the ASU can be placed in any convenient space in the aircraft, eliminating running pitot/static plumbing through the bulkhead. The OASIS® is available at less than the cost of traditional instruments and eliminates additional costs associated with repair and calibration of older mechanical gauges while reducing system weight compared to conventional backup instruments.