EAS Expandable EGT Probe w/Lead

The EAS Expandable EGT Probe w/Lead from EDGE PRODUCTS is a critical diagnostic tool designed for marine engines and high-performance boating applications. Whether you're monitoring exhaust gas temperature on a performance outboard, inboard, or auxiliary power system, this probe delivers real-time thermal data to your engine management system or aftermarket gauge cluster. Serious anglers, tournament boaters, and marine technicians rely on EGT monitoring to detect lean running conditions, prevent detonation, and optimize fuel mapping before catastrophic engine damage occurs.

This expandable design allows custom exhaust installation depths and angles, accommodating both stock and modified exhaust manifolds without permanent modification to your engine bay. The probe features a precision thermocouple sensor housed in a durable stainless steel housing that withstands sustained high-temperature exposure and saltwater corrosion—essential for long-term reliability in freshwater and offshore environments. The included lead terminates in a standard connector that integrates seamlessly with EDGE PRODUCTS tuning modules, standalone EGT gauges, or compatible engine control systems, providing accurate temperature readings from 32°F to over 1,800°F.

Installation works best for boat owners running turbocharged, supercharged, or naturally aspirated high-output engines where fuel and ignition curves demand constant thermal feedback. The compact 6.5-inch probe length and 1.6-inch diameter fit most exhaust manifold bosses without requiring extensive fabrication. This tool is equally valuable for diagnosing existing engine issues—sudden EGT spikes often reveal carbon buildup, lean jetting, or fuel delivery faults long before visible symptoms appear on the water.