Upgraded of FOXWELL NT301, More Features - FOXWELL’s first 2-in-1 OBDII scanner with a 12V battery tester. Combines check engine light codes function with battery health, starter, and charging system tests—letting you diagnose both engine and battery issues in one go. Warm Tip: Connect the battery clamp cable to the diagnostic cable before running battery tests.Full Battery Health Checking - Beyond battery voltage, this car battery tester takes full battery insight. It quickly identifies issues with the battery, starting, and charging systems in seconds. This automotive battery tester provides crucial insights into accurately measures SOH (State of Health), starter condition, cranking voltage, cranking time, CCA (Cold Cranking Amps), SOC (State of Charge), output voltage of charging system, helping you avoid roadside breakdowns and costly repairsCovers All OBD2 Module - Equipped with a 2.8" display (larger viewing area than basic 2.4" models), this car diagnostic scanner can read Diagnostic Trouble Codes (DTC), Check Engine Light (CEL), clear error codes, show live sensor data with graph(engine RPM, coolant temperature, fuel trim, and sensor readings), read freeze frame data, perform on-board monitoring tests, component test, and retrieve ECU info. Working with U.S. models from 1996+, European vehicles from 2001+, and Asian cars from 2005+ via the 16pin OBDII port. Note: All car faults must be properly repaired before clearing the trouble codesEasy S-M-O-G Testing - Retrieving I/M readiness status data by one-click I/M readiness key with build-in LED Light. This code reader for cars and trucks can quickly indicate the E-mission status and show you the test results in Green, Yellow and Red LED light. And DTC's coded descriptions save time in locating the bad sensors or components and researching solutions. Know car conditions before annual inspectionReal-time Live Data Displaying - This car scanner show live vehicle sensor data in text and graph formats (Engine RPM, DTC Trigger and more). Being able to view sensor inputs in real time helps you to focus on any suspicious or symptom-specific data parameters. Supports data playback and printing through a computer, making repairs easierPowerful and Precise Testing - This battery analyzer tester is compatible with AGM flat, AGM, and GEL batteries. Utilizing advanced Conductivity Technology, it ensures accurate and stable readings through its robust mechanical connections and clip-on leads, minimizing data loss. With the proprietary FOXWELL Chip, it enhances data processing efficiency, improving test accuracy by 20%OBDII Protocol Compatibility and Updating - The NT301 Plus code scanner supports major OBDII protocols, including ISO9141, KWP2000, J1850 VPW, J1850 PWM, and CAN. Note: Not support non-OBDII protocols, such as pre-1996 vehicles or Fiat/ALFA/Lancia, or some models of the French PEUGEOT, Citroen, South Korea Ssangyong, Russia Lada, VAZ, UAZ, GAZ. Special protocols may need a extra connector cable, please confirm before purchase. Support lifetime updates via Windows 7/8/10 and CAN NOT support MAC/IOS.Notes - The NT301 Plus does NOT support ABS/SRS/Airbag/Transmission error codes, not support reset service lights, battery registration, or scanning other modules and electronic control systems in hybrid vehicles. No mobile apps are supported, it's a plug-and-play tool that connects via a 16-pin diagnostic cable to the vehicle’s OBD2 port. And please note that some vehicles may not support Auto VIN, so manual entry might be required. If the part number is incorrect, consult your car manufacturer.