Monitor air-fuel with accurate lambda and stoichiometric read outs. NTK’s air-fuel ratio monitor (AFRM) kit includes all of the components you need for testing, covering more than 99% of vehicles on the road today.

• LED Display Shows AFR or Lambda (λ)
• Simplified Free Air Calibration
• Reads 9.0-20.0:1 AFR (.062-1.37λ)
• 0-5 Volt Analog Output Signal
• Adjustable Sampling Rate Display Speed
• Dedicated Wide Band Sensor for AFRM
• New Compact Design