Koso meters are designed to give riders clear, reliable information in a compact and modern display, making them a smart upgrade for both custom builds and everyday motorcycles.

This X‑2 multifunction unit is a great tool for all horsepower enthusiasts that are upgrading their engine with turbo or supercharger. Following many requests, we came up with a unit that combines boost pressure, air/fuel ratio and a temperature function which can be installed on the cooling system or the intercooler.

• Bright LED technology for improved visibility
• Temperature monitoring where supported
• Voltage monitoring where supported
• Fuel level display where supported
• Designed for dependable use in real riding conditions

Specifications

• Digital boost pressure Range: 0 ~ 15/30 psi | | Unit: 0.5 psi.
• Peak recall positive Range: 10 ~ 30 psi | | Unit: 1 psi negative Range: -1 ~ -30 psi | | Unit: 1 psi.
• Level boost pressure 15 psi Range: 0 ~ 15 psi | | Unit: 0.5 psi 30 psi Range: 0 ~ 30 psi | | Unit: 1 psi.
• Boost pressure warning Range: 1 ~ 30 psi.
• Digital air/fuel ratio Range: 9 ~ 24 | | Unit: 0.1.
• Level air/fuel ratio Range: 9 ~ 21 | | Unit: 0.2.
• Over LEAN setting Range: 14.8 ~ 24.
• Over RICH setting Range: RICH 14.6 ~ 10.
• Warning function Screen changes blue to amber.
• Compatibility 2 stroke or 4 stroke engines.
• ”2 stroke adaptor” BG001855 is mandatory when used on a 2 stroke application.
• Requires a DC 12 V battery absolutely (will not function with our AC/DC converter) !.
• Temperature Range: 32 ~ 482 °F (0 ~ 250 °C) | Unit: 0.1 °F or °C (alternative)
• Over temperature setting Range: 140 ~ 482 °F (0 ~ 250 °C) | | Unit: 1 °F (°C)
• Indicator lights AFR (green), High AFR (red), Low AFR (red), Pressure (red), Temperature (red)
• Effective temperature range 14 ~ 140 °F (‑10 ~ 60 °C)
• Effective voltage DC 12 V.
• Wire length Standard : ±5'6'' Longer wire :±11'.