Feature: 1. Multifunctional circuit tester for voltage and polarity tests, continuity tests, signal circuit tests, power/activation components, trailer lights and connection tests. Test vehicle battery voltage, AC and DC voltage tests, resistances, leaks, short circuits, component activation overload protection with large battery clamp, etc., able to withstand greater loads. It supports a wide input voltage range of 9V‑70V, can be used for 12V car and 24V trucks. 2. Made of high quality plastic materials, environmentally friendly and non‑irritating. Low power consumption, high performance. Comes with a 10m/32.8ft extension cable allows you to test car or truck. 3. Designed with an easy to navigate user menu, you can read DC voltage, AC voltage, resistance and diode parameters clearly. The DC voltage mode is used to read the DC voltage at a resolution of 0.1 volts; AC voltage mode for reading maximum voltage, minimum voltage and frequency; The resistance mode is used to read the resistance between the tip and the auxiliary ground lead. 4. With automatic circuit breakers, safe and sustainable to use, and short‑circuit protection prevents overload of equipment. Before you start testing circuits or components, you must do a quick self‑check to insure that your tool is in good condition. 5. It can determine at a glance whether the circuit is positive, negative or disconnected without having to reconnect the clamp from one battery pole to another. By depressing the power switch, conduct a positive or negative battery current to the probe tip for testing the function of an electrical component without the use of jumper wires. Specification: Condition: 100% Brand New Item Type: Automotive Diagnostic Tool Material: Plastic Function: Voltage and polarity test-quickly determine DC / AC voltage and positive / negative. Resistance continuity test-LCD screen displays resistance value. AC circuit signal test-quickly solve the problem of the sensor circuit. Activation of components in your hands, on the vehicle or on the ground. Test trailer light and connect 10M extension cable allows you to test car or truck. Check for poor grounding and look for short circuits Specifications: Display: TFT color display (160 x 128 dpi) Operating Temperature: 0 to 60℃ (32 to 140℉) Storage Temperature: -40 to 70℃ (-40 to 185℉) External power: 12.0 or 24.0 V power provided by vehicle battery Test Tool Specifications: DC voltage range: 0-65V +1 bit Resistance range: 0-200 K ohm Frequency response:0Hz to 10K hz Circuit Breaker Rating current: 1-10 Amp Standard Test: 100% Current: no trip 150% Current: Trip within one hour 200% Current: trip within 3-30 seconds. 300% Current: Trip within 0.5-4.0 seconds. High Performance Electrical Circuit Tester: 12V car/24V Trucks Resistance test Overload protection Components activation 10M extension cable AC and DC voltage test Professional diagnosis Signal Circuit Testing: For Example,you suspect there is a problem with your M.A.P sensor circuit,then follow the procedure involved with testing this sensor: Set the tool in AC voltage mode,using the probe tip with chassis ground lead. Connect vacuum pump to MAP sensor. Contact the probe tip to the MAP sensor positive terminal and observe the LCD readings which should be a sine in normal condition. Apply vacuum.. Package List: 1 x Detector 1 x Extension Cord 1 x Clip Cable1 x Cigar Lighter Line 1 x Receiver 1 x Receiver Cover 1 x Manual 1 x Toolbox Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.