MADE IN THE U.S.A.:Yes MODEL:WEGO III PACKAGING:Each SPECIFIC APPLICATION:No STYLE:Wide-Band TYPE:Tuning Aid ・Professional air/fuel ratio system with built in data logging ・Versatile tuning aid for carbureted and fuel injection engines; suitable for on-road and dyno tuning ・Highly accurate with less than +/- 0.10 AFR error over 10.3-19.5 AFR range using Bosch LSU 4.2 5 wire wide band oxygen sensor(s) ・Easy free air calibration procedure corrects for effects created due to sensor aging ・0-5V analog AFR output for interface to dyno instrumentation; easily interfaced to all leading dyno systems ・Waterproof with ultra-bright daylight readable blue display features automatic dimming function ・11-16V DC supply voltage needed for operation; current drain is approximately 1 amp ・Built in USB interface ・Data logging software needs a PC or laptop with Windows 7/8/10; data can also be exported to an Excel spreadsheet for further analysis ・Compact size:4 L x 2 W x .5 H ・Includes WEGO III Wide Band Exhaust Gas O2 Sensor Interface, 42 harness, Bosch O2 Sensor(s), 18mm X 1.5 weld nut(s) for sensor mounting and software ・Use PART #1022-0008 for replacement Bosch O2 sensor (sold each) ・Made in the U.S.A.