Lambda Pro

(Measures Lambda, AFR)


Lambda Pro is the simplest to use of all ECM’s air-fuel ratio (AFR) analyzers.  But don’t let this fool you, Lambda Pro has “big meter” features such as a linearized analog output, max/min AFR recording, and a stoichiometric SEGO.  Lambda Pro is DC powered and comes with a carrying case.

Response Time Less than 150ms
Fuel Type Lambda, Gasoline, and Methanol
Power 11 to 28 VDC
Sensor Mounting 18mm x 1.5mm thread
Dimensions 7.5" x 4" x 1.2" (W x H x D)
Operating Temperature Electronics: -40 to +85°C
Sensor: 850°C (maximum continuous)
Ranges & Accuracies
λ 0.55 to 1.75 λ (+/-1% at stoichiometric, +/-2% elsewhere)
AFR 8.0 to 25.5 AFR (+/-1% at stoichiometric, +/-2% elsewhere)
Analog 0 to 5 V, linearized.
SEGO (Simulated Exhaust Gas Oxygen) Sensor Output

Included Analyzer Components

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Calibration Tools

To verify accurate operation of Lambda Pro, ECM offers its AFR Sensor Simulator.  The AFR Sensor Simulator is connected to the analyzer in place of the AFR sensor.  The simulator tests the analyzers’ sensor heater control circuit and the analyzer’s AFR calculation hardware and software.  The simulator is a calibrated device that can be returned to ECM for scheduled calibration verification.

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LambdaCAN Manual (Ver. 2014-09-11, 1 MB)
Lambda Pro Option 1200-2 (Ver. 1, 67 KB)
Lambda Pro Option 1200-3 (Ver. 2, 68 KB)
Lambda Pro Option 1200-4 (Ver. 3, 69 KB)
Lambda Pro Option 1200-6 (Ver. 6, 69 KB)
TechNote Engine Stoichiometry (66 KB)