The DPM-2273 Digital Panel Meter (DPM) is a form, fit and functional replacement for the Farnell Instruments’ DPM2A panel meter used onboard the Victoria Class Submarines. The DPM-2273 plugs into the existing wiring harness on the submarine and provides improved temperature and accuracy specifications over the original DPM2A. The new design has greatly improved environmental performance for humidity, temperature and shock and vibration. The microprocessor based DPM-2273 is reprogrammable, so new scaling factors and ranges for additional input signals can be programmed directly into the unit at the time of manufacture.