• 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







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