Koso EGT-02R EVO – Dual EGT Data Logger with RPM and Water Temperature Display

With the EGT-02R EVO, Koso continues the evolution of its proven dual temperature gauge. Building on the popular EGT-02, this new model now also offers RPM monitoring and a precise water temperature display . This allows for even finer engine tuning and reliable protection against damage.

Thanks to adjustable warning and maximum value functions for both exhaust gas temperatures (EGT A/B), engine speed, and coolant temperature, you receive important real-time data directly while driving. The user-friendly operation allows for quick adaptation to individual requirements – whether for tuning, racing, or everyday use.

A particular highlight is the color-changing backlight , which guarantees optimal readability even at night. This well-designed measuring instrument can play a crucial role in preventing costly engine damage .

Technical specifications:

Exhaust gas temperature (EGT) A/B:

• Measuring range: 250 – 2,100 °F (100 – 1,200 °C)

• Unit: Selectable °F or °C (steps in 1 °F/°C)

• Over-temperature warning: 392 – 1,832 °F (200 – 1,000 °C)

• Maximum value recording: 250 – 2,100 °F (100 – 1,200 °C)

Voltmeter:

• Measuring range: DC 0.8 – 18 V , display in DC 0.1 V

• Voltage warning:

  • Undervoltage: DC 8.0 – 13.0 V

  • Overvoltage: DC 13.0 – 16.0 V

Speed ​​(RPM):

• Measuring range: 0 – 15,000 rpm

• Input signal setting: 0.5, 1, 1.5, 2, 2.5, 3 ~ 24

• Input signal types:

  • HI-ACT ( positive wave signal )

  • LO‑ACT ( negative wave signal )

• Shift light / warning: 1,000 – 15,000 RPM (in 100 RPM increments)

• Maximum recording value: 1,000 – 15,000 RPM

Water temperature:

• Measuring range: 32 – 482 °F (0 – 250 °C)

• Unit: Selectable °F or °C (steps in 1 °F/°C)

• Warning range: 140 – 482°F (60 – 250°C)

• Maximum value recording: 140 – 482 °F (60 – 250 °C)

Other features:

• Backlight: 5 brightness levels (1/5 to 5/5)

• Maximum recorded runs: 50 runs

• Recording time per run: 99'59''99 seconds (equivalent to approximately 3.18 hours)

• Playback modes:

  • 1x , 1/3x , 3x speed

  • Pause , Rewind , Play

Operating area:

• Effective Temperature: 14 – 140°F (-10 – 60°C)

• Operating voltage: DC 12 V

Sensors:

• Standard EGT: 28-CKTYPE9 (cable length: 66”)

• Fast-Response-EGT: 28-CKTYPEX (Cable length: 66”)

The Koso EGT-02R EVO is therefore a highly precise all-rounder for anyone who wants to analyze their vehicle down to the last detail while simultaneously protecting it. Thanks to comprehensive measurement and storage functions, the device offers the perfect combination of control, safety, and performance.