Features:Display: 3.2inch large LCD color screen for display functions status measuring results, analogue bargraph shows the battery lifespan after finishing tests.Multiple Test Functions: Support battery test (battery voltage, internal resistance, discharge current), start-up test (discharge performance), load test (power generation performance) functions. Continuous testing checks battery status and discharge capacity. Innovative temperature function (Upgrade model 2202 only), convenient for engine temperature and air conditioning temperature measurement, more practical.Support 12.0V and 24.0V Batteries: Automatically identify 12.0V or 24.0V batteries, and select smart measurement with one key. Various types of batteries are optional, supporting matching of various types of batteries, EN, IEC, CCA, SAE, DIN.Multiple Protections: Support input overvoltage, reverse polarity connection, high voltage connection protections and poor contacts of test clip.Simple Operation: Allows to connect the car battery, it does not need to take out the battery for testing. The battery detection operation is simple, and it is easy to understand the battery status. The larger the CCA value of the battery, the smaller the internal resistance.What You Get:Optional basic model 2201: 1x Battery tester, 1x Leather bag, 1x User manual.Optional upgrade model 2202: 1x Battery tester. 1xTemperature probe. 1x Power supply line. 1x Leather bag. 1x User manual.Specifications:Item name: Smart Battery TesterModel: Model 2201/Model 2202 optional (2202 with charging capability and temperature measurement).Material: TPR materialsColor: As shownScreen size: 3.2 inch color screen(55*57mm four color screen)Battery: 12V/24V activated lead-acid batteryInternal resistance measurement: SupportCurrent of discharge: SupportAnalysis of lifespan: SupportElectric quantity detection: SupportAbility to starts: SupportQuality of battery: SupportFunction of lighting: SupportCar starting test: SupportVehicle load measurement: SupportTemperature detection: Upgrade model 2202 OnlyVehicle charging capacity: Upgrade model 2202 OnlyRange CCA: 100-1999Range of capacity: 3AH-250AHTest method: Four-wire Kelvin testBattery selection criteria: STD/AGM/GEL/EFB/EN/IEC/CCA/SAE/DINPower supply power: Storage battery power supply/power supplyother: White backlight, overvoltage protection, reverse input protection.Package size: 216*145*49mm / 8.50*5.71*1.93inPackage weight: 2201: 480g / 16.93ouce, 2202: 535g / 18.87ouce.Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 10-30mm. Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.