Check the listing for details. 12V/24V Car Circuit Tester Electrical System Voltage Tester AVOmeter Multimeter. Condition: New. Listed at 95.99 USD. fast shipping,3-7 days delivery MRCARTOOL B550 is the newest generation intelligent Electrical System Circuit Tester with 2.4 inch large size LCD screen display. It is dedicated to test all 9V-30V vehicle electrical systems. Features:➤ 1.【Intelligent Multimeter】B550 automotive electrical tester not only has a multimeter mode (measure voltage/resistance, diode test) can also test trailer lights, AC circuit signal test, vehicle component activation, etc.➤ 2.【Safe and Reliable】 This circuit tester unit has a short circuit protection function, which can instantly detect poor ground contact and find the short circuits. It also has a (0-5V) adjustable power supply, which can adjust the voltage output below 5V and limit the current below 100mA to protect your electrical components.➤ 3.【Oscilloscope Mode】The automotive diagnostic test tool is able to display the parameter curve diagram of the tested component, such as voltage, frequency, time, etc. You can observe the test results more directly by adjusting the displayed interval.➤ 4.【Network Online Upgrade】B550 automotive circuit tester supports online upgrade. By in setting interface, Select“Firmware Upgrade” to enter into Update mode or press “LEFT” and “OK” button at the same time to enter into Update mode. Connect PC with a USB cable to Probe, Open update tool on a computer to update.➤ 5.【Extra Extension Cable】The 16.4-foot extra extension cable allows you to access any electrical system in your car, van, truck and trailer. Plus, the built-in flashlight is bright enough to illuminate your work area.【Built in Multiple Languages】Auto electric circuit tester supports English, German, Dutch, Spanish, French, Italian, etc., a total of 13 languages. MULTIMETER MODECovered with comprehensive parameters of Multimeter,can quickly test the DC voltage, resistance and current in the circuit system. OSCILLOSCOPE MODEIt is able to display the parameter curve diagram of the tested component,such as voltage, frequency, time, etc. 0-5V POWER SUPPLYAvailable to set 0-5V output voltage for checking the wiring condition of the component under test. COMPONENT ACTIVATIONIt can generate "Activation" signals for components which includes lights, motors,and other onboard electronic devices. WIDE APPLICATIONSupport all vehicles' electrical systems. It is designed to diagnose circuit issues for Cars, Trucks, SUV, Motorcycles,Boat, Excavator, Trailer. etc. SUPPORT MULTI-LANGUAGESEnglish, Espanol, Deutsch, Frangais, Italiano, Polish, Portugal, Russian,Vietnamese, Thailand, Indonesian, Filipino, Malay FLASHLIGHTTo enable users to successfully complete circuit testing even in a dark environment. HD DISPLAY2.4 inches (320*240 DPI) TFT true color display Specification:1.Display: 2.4 inches (320*240 DPI) TFT true color display2.Working temperature: 0-60°C (32-140 F°)3.Storage temperature: -40-70°C (-40-158 F°)4.External power supply: 12V or 24V powered by battery5.Minimum working voltage: 9V6.Maximum working voltage: 30V7.Maximum measuring voltage: 100V8.Minimum measuring voltage: 0.1V9.Resistance measurement range:1 ohm~200K ohm10.Current measuring range: 0~18A11.Maximum continuous current: 18A Package List:1xMain Unit1xStorage Bag1xBattery Hookup Clips1xExtension Cable1xExtension Connectior1xLine1xUSB Cable1xProbe Adapter1xProbe Tip 1xUser Manual Model B550 B530 voltage resistance test ✓ ✓ Intelligent multimeter ✓ diode test ✓ Oscilloscope test ✓ (0-5V) adjustable power supply ✓ Voltage / resistance intelligent identification ✓ AC circuit signal test ✓ ✓ Test trailer lights ✓ ✓ Check the poor grounding and find the short circuit ✓ ✓ Vehicle component activation ✓ ✓ Multi-languages ✓ ✓