14point7 Spartan 3 Lite V2 Wideband O2 Controller

Spartan 3 Lite v2 is a Wideband Oxygen Controller for Bosch LSU 4.9 and LSU Adv sensors.

It features programmable analog and simulated narrowband outputs, compatible with most gauges, ECUs, and dataloggers.

Factory-calibrated with premium components, it delivers ±0.01 Lambda accuracy—no user calibration needed.

Built tough and water-resistant for engine bay installs, with a simple 4-wire setup.

Backed by a 2-year warranty—twice as long as the competition.

Features:

• 10ms Response Time
• 1x High Performance Programmable Analog Output, default is 0-5v 10-20 AFR Linear Output
• 1x Programmable simulated narrowband output
• Compatible with Bosch LSU 4.9, Bosch LSU ADV, and clone LSU 4.9 sensors. The LSU ADV sensor provides a 20x resolution increase over the LSU 4.9.
• O2 range of 0 to 21 AFR
• Lean Burn mode for lean burn applications
• Smart Heatup; Temperature Triggered Heating, Spartan 3 Lite v2 will wait for the Oxygen sensor to be heated to 350C by engine exhaust gases before heating up the sensor. By default, this is not enabled, enabled via UART command.
• Output Sequencer provides a dual-level precision voltage signal to the Linear Output. This allows you to easily check that the AFR/Lambda seen by any device connected to the Linear Output is accurate, and if not, to generate a 2 point calibration to achieve perfect accuracy. MegaSquirt users, check out how to use the Output Sequencer for maximum AFR accuracy here
• Does not require Free Air Calibration but FAC is available. Recommended only for clone LSU 4.9 sensors
• Sensor Heater Status LED Output (LED included) allows the tracking of sensor temperature.
• UART
• ARM Cortex M4
• 0.1% tolerance components for all components that affect the accuracy
• Separate grounds for LSU Heater and electronics provide improved noise performance
• 2-year warranty with 14point7
• Spartan 3 Lite v2 does not have CAN Bus
• 8 ft cable length
• Operating Temperature: -40[C] to +105[C]
• Water, dust, and dirt resistant