Model 4300 Attitude Indicator | 3-1/8in, Electric, Lifesaver Gyro, Rotating Roll, Traditional, 10-32 VDC, 10º Tilt, 28 VDC Lighting P7-1B1129 They are available for either

They are available for either 14-volt or 28-volt systems

Like Epson's  other PX labeling products

The AV-30 is a highly capable

multi-mode instrument that mounts in the legacy 3⅛ inch round instrument panel cutout

The 31-220NRFX is a BNC Jack to BNC Jack Straight Adapter with gold-plated phosphor bronze contacts

Model 4300 Attitude Indicator | 3-1/8in, Electric, Lifesaver Gyro, Rotating Roll, Traditional, 10-32 VDC, 10º Tilt, 28 VDC Lighting P7-1B1129 They are available for eitherThe Model 4300 Electric Attitude Indicator incorporates a moving display that simulates the earths horizon and provides the pilot with a real time visual indication of the aircraft pitch and roll attitude relative to the indicator symbolic airplane. Version (EDMO# 4300 41110) is a 3 1 8 inch 10 32 VDC electric attitude indicator with Lifesaver Gyro, rotating roll, traditional symbolic aircraft, 10 tilt, and 28V lighting.