Koso Mini 3 Air/Fuel Ratio Meter

Koso has over 30 years of experience in designing and manufacturing high quality products. They are known for their product’s quality, reliability and capability. This air/fuel ratio meter is specifically designed to help tune your carbureted or fuel injected engine. Compatible for 4 stroke engines only.• Properly tune the engine and help you avoid engine problems

• Simply connect the meter to the 12VDC power source and plug it to the oxygen sensor and you are ready to go

• Display range is 12.2-17.2

• If the A/F ratio is higher than 17.2, the display will show -L-

• If the A/F ratio is lower than 12.2, the display will show -A-

• Meter size: 2.36″ W x 1.18″ L x .45″ H