Exhaust Gas Temperature Indicator

This part number designates a panel-mounted engine Exhaust Gas Temperature (EGT) indicator. Manufactured by Ragen Data Systems or Insco (Model DST1939-1), this primary engine instrument is factory-installed on high-performance Cessna piston aircrafts.
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Description

This unit has been bench tested by an FAA certified repair station and it comes with an 8130 single release dated 10/20/2025.

Key Technical Capabilities
  • Exhaust Gas Monitoring: Continuously processes electrical signals from engine-mounted thermocouples, converting thermal voltage shifts into direct, real-time temperature needle movement. 
  • Optimized Operational Limits: Features specialized faceplate scales (often including customized start, taxi, and operational green/yellow thresholds) to help pilots manage proper fuel-air mixture lean thresholds and monitor start parameters.
  • Damped Jewel Linkages: Employs an internal design engineered to isolate the delicate pointer assembly from high-frequency powerplant harmonies, reducing needle jitter during extreme power changes.
  • Integrated Multi-System Interfaces: Built with standardized rear pin connections designed to communicate seamlessly with existing engine clusters or centralized advisory displays without losing signal integrity. 

Additional information

Part Number

9910328-1

Serial Number

140

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