Monitor live air fuel ratio on your smart phone without gauges! The PE-Wideband O2 Kit features Bluetooth connectivity, 0-5 volt analog and CAN output in a robust, compact design. Easy 2 wire connection to install in any vehicle. The PE-Wideband App will enable you to see live engine air fuel ratios on your smartphone. General Features - Wireless Bluetooth Communication - up to 30 ft - Bosch LSU 4.9 Sensor Included - Available CAN Communication - Output for External Device (0-5 Volt) - No Sensor Calibration Required - Optional 6 Sensor Extension Cable Available App Features - Free iOS and Android App - Fast Reconnection Times - Adjustable History Graph in App - Display AFR or Lambda - Customizable Color Gradients