The FuelTech WB-O2 Nano is a compact, high-precision wideband O2 sensor conditioner designed for race, marine, and off-road applications. Compatible with five popular wideband O2 sensors — Bosch LSU 4.2, 4.9, and 5.2, NTK ZFAS, and NTK Wideband — it features advanced signal conditioning hardware that extends the reading scale to values slightly below 0.21 lambda for accurate measurement across extremely rich mixtures and demanding tuning conditions. Three configurable sensor heating modes (normal, fast, and current limited) are selectable via CAN, along with an auto startup mode that brings the sensor to optimal temperature before reading. CAN communication with FuelTech PowerFT and VisionFT ECUs sends O2 data directly through the CAN network, preserving analog inputs for other sensors and enabling multiple conditioners for bank-to-bank or per-cylinder O2 logging. A 0-5V analog output is also available for use with any standalone ECU or external datalogger. The familiar Nano display now includes day/night dimming configurability and a shift light alert. The updated case matches NanoPRO mounting points. Rated IP67 when properly connected to the harness.

FuelTech WB-O2 Nano Wideband O2 Sensor Conditioner Features:

• Universal Application; Designed for Race, Marine, and Off-Road Vehicles
• Compatible with FuelTech PowerFT and VisionFT ECU Lines
• Supports 5 Wideband O2 Sensors: Bosch LSU 4.2, Bosch LSU 4.9, Bosch LSU 5.2, NTK ZFAS, and NTK Wideband O2 Sensor
• Extended Reading Scale Below 0.21 Lambda; 3 Configurable Heating Modes via CAN: Normal, Fast, and Current Limited; Auto Startup Mode Included
• CAN Communication with FuelTech PowerFT and VisionFT ECUs; Preserves ECU Analog Inputs; Supports Multiple Conditioners for Bank-to-Bank or Per-Cylinder O2 Logging
• Nano Display with Day/Night Dimming; Shift Light Alert
• IP67 Rated When Properly Connected to Harness
• Harness and Sensor Sold Separately
• Sold Individually