About this item ★【SAVES MONEY AND TIME】The KW850 car computer reader is a professional vehicle diagnostic tool for car owners to quickly read and erase DTC (engine fault codes) as well as a battery tester. A look-up library with over 8, 000 built-in generic code definitions allows you to accurately identify the cause of your CHECK ENGINE and perhaps fix it without going to see your dealer. It also assists you in easily passing annual emissions tests and SMOG CHECK. ★【NOT ONLY TURN OFF THE CHECK ENGINE LIGHT 】Unlike other cheap car diagnostic scanners, KW850 OBDII code reader covers full OBDII/ EOBD diagnostic functions for engine system. O2 sensor test, EVAP systems test, and on-board monitoring test give you full control of your vehicle's running status, while a graphical and numeric live data stream display will help you to find out the faulty sensor readings. (Please be noticed: this function is for ENGINE System only). ★【UNIVERSAL COMPATIBILITY AND EASY TO USE 】Works on most 1996 US-based, 2003 EU-Based and Asian (OBDII & CAN) domestic and imported vehicles, including passenger cars, SUVs, light trucks, etc. Supports all OBDII protocols. Simply plug into the OBD II port on your car, turn the ignition on and you are ready to go. No battery or complicated apps install needed. ★【BEST IN THE MARKET】KW850 code reader car diagnostic tool is coming with the user friendly diagnostic interface and optimized software algorithm, it makes diagnosis 2-3 times faster than other OBD2 scanners. Featuring 2. 8'' LCD color screen and graphical real time sensor analysis, may help you fast identify faulty readings in seconds. Extra-long (4. 5') diagnostic cable coming in the package, allows you freely diagnose your cars even outside of vehicles. ★【WHAT YOU GET】KONNWEI KW850 OBDII check engine light code reader offers free storage case, life-time FREE software update service to fix the latest bugs or add newly features which makes it compatible to more vehicles in future (Please note: it CAN NOT be updated on an MAC PC). With a worry-free 36-month and professional technician staying behind, 7*24 at your service! KW850 OBDII Code Scanner Features: Universal works with all OBDII/EOBD& CAN compliant cars, light trucks (12V only), SUVs and minivans. NOTE: CAN NOT work on hybrid or electric cars. Read engine fault codes and show definitions. Easily find out the root of check engine light (MIL) before going to repair shop or fix by yourself. Clears codes, turn off the MIL and resets monitors. Hotkey I/M readiness allow you to get the emissions readiness status. Display complete live data stream in digits and graph format, RGB color screen allow you to compare 4 live readings to find out any suspicious parameters. Read freeze frame data which shows engine conditions such as fuel trim, engine coolant temp, etc when the Malfunction Indicator Lamp (MIL) was triggered. Multi-language menu options —English, Spanish, French, etc. Advanced O2 sensor test, EVAP test, Modes 8 Test; Model 6 on-board monitoring function can help you pinpoint which cylinder has a misfire issue. Retrieves vehicle information (VIN, CID and CVN). 2 IN 1--OBD2 Diagnostic Scanner and Battery Tester Real time Car Battery Voltage Check, helps you to know the battery healthy status. Before Ignition: <10.8V-- Battery Voltage Too Low, Need to Change Battery 10.8V--11.8V-- Voltage Slightly Low, Maybe Difficult to Start Ignition 11.8V--12.8V—Normal Battery Voltage, Good Battery Status! After Ignition: 12.8V--13.2V-- Battery Voltage Too Low, Alternator Might Not Able to Charge 13.2V--14.8V-- Normal Battery Voltage, Alternator Charging Normal >14.8V-- Caution! High Battery Voltage Detected, Might Damage the Battery, Please Check the Engine Stabilizer Exclusive 4 Live Sensor Readings Analysis KW850 OBDII car engine diagnostic code scanner has 2.8" large size LCD color screen with one-click I/M readiness status design, which fast to scan vehicle's engine healthy status. Except that we still add some unique features like memory backup for off-vehicle data reviews and analysis, shows live vehicle sensors data in text, can display 4 groups of live data in graphing at one time to help customers better analyze the abnormal sensor parameters.(Other obd2 scanner can only display 1 group of data) ONE-CLICK FAST&ACCURATE I/M Readiness Show vehicle's status of various Emissions-related System data to indicate whether the vehicle's monitors have run and completed their testing or not. Fully check the vehicle with KW850 fault codes readers before you go to SMOG CHECK, help you to get ready for emission inspection and pass it. Save your time and money. Life-time Free Online Update & Print Service Check the updating apps on official website, download and install on windows Press and hold any button of the scanner, meanwhile connect the unit to your PC, then release, it will be in Update Mode. Click "Check Update" and the software will intelligently finish the upgrade process on his own. (NOTICE: the updating tool is supporting windows XP- Win10, please make sure your windows is official authorized version so that the driver can be installed properly)