MidContinent MD23 Flex Digital Counter Drum Altimeter | 2″

The Mid-Continent MD23 Flex® Digital Counter Drum Altimeter is a modern electronic altimeter designed to replicate the familiar appearance and readability of a traditional mechanical counter drum instrument while utilizing solid-state technology. It provides accurate altitude indication in a compact 2-inch panel format.

The MD23 Flex® features a digital counter drum display for thousands of feet, paired with an analog-style pointer for precise altitude awareness. This hybrid presentation allows pilots to quickly interpret altitude information using a layout they already know, while benefiting from improved reliability and reduced maintenance compared to legacy mechanical altimeters.

Designed for installation in certified aircraft, the MD23 Flex® draws power from the aircraft electrical system and integrates easily into modern or legacy instrument panels. Manufactured by Mid-Continent Instruments and Avionics, it is intended for installation in accordance with applicable aircraft approval data and manufacturer instructions.

MidContinent MD23 Flex Digital Counter Drum Altimeter Features

• User-selectable features: vertical speed indicator, six-second vertical trend, altitude target, approach minimums alert, barometric setting
• Operating range up to 55,000 feet
• Configurable altitude units (feet or meters)
• Baro setting synchronized via ARINC 429
• Encoding outputs via ARINC 429 and Gray Code
• Standard 2-inch size
• Lightweight and compact – weighing only 0.4 lb
• Simple user interface with a single, push-and-turn control knob
• Daylight readable LCD with high-resolution graphics
• Manual or automatic lighting control from an external lighting controller or built-in photocell
• SSEC curve customized to match primary flight displays (available)
• Night Vision Integrated System (NVIS) compatible (available)
• TSO certified (Design Assurance Level A)