Edge Insight CTS4 Digital Gauge Monitor

Note: CTS4 is a new release from Edge. Orders placed now are pre-orders and ship in the order received as stock arrives, expected early November 2026.

The Edge Insight CTS4 digital gauge monitor puts live engine, transmission and emissions-system data on a 5.5-inch touchscreen without tuning the truck. It plugs into the OBD-II port, covers most domestic gas and diesel trucks from 1996 on, and replaces a pillar full of mechanical gauges with one configurable display.

Insight CTS4 is the monitor-only model of the CTS4 family. When you want power, the same hardware upgrades to Evolution tuning or Insight+ custom tuning through an online update. No new device required.

What CTS4 Changes Over CTS3

• 5.5-inch high-resolution touchscreen with 21% more viewing area than CTS3
• 1.7GHz dual-core 64-bit processor: 3.4x the processing power of the previous generation
• 2GB of 3400MHz LPDDR4 RAM, a 300% increase in memory
• 50% faster PID changes, so gauge data updates without lag
• 70% faster cold boot: gauges are live sooner after key-on
• New Quick Action buttons, Maintenance Minder and Peak Value Recall
• Smooth 60 FPS display with customizable gauge layouts and backgrounds

Built for Towing and Daily Driving

Monitoring and Diagnostics

• Real-time gauges for EGT, boost, transmission temperature, coolant temperature, DPF soot load, regen status and dozens of supported parameters
• Custom alerts and warnings on supported parameters
• Integrated data logging with export
• Read and clear diagnostic trouble codes
• Built-in performance tests: 0-60 MPH, 1/4 mile and more
• Wi-Fi updates keep the device current without a computer
• Expandable Accessory System (EAS): add EGT probes, pressure and temperature sensors, or the CTS4 backup camera

Installation

• Plugs into the OBD-II port: no cutting, splicing or ECM flashing
• Includes a windshield mount; vehicle-specific Edge Display Mounts are available separately
• Boots directly to your gauge screen on key-on

Fitment

Compatible with most 1996 and newer domestic gas and diesel vehicles, including Ford Powerstroke, GM Duramax and Dodge/Ram Cummins trucks. Supported parameters vary by vehicle.

This device does not alter vehicle emissions and is legal for use on emissions-controlled vehicles in all 50 states.

Warranty and Support

Backed by the Edge Products one-year limited warranty. Dieselr supports every Edge device we sell, from fitment checks before the order to setup and troubleshooting after install.