Check the listing for details. AUTOOL 12V 24V Car Circuit Tester Probe Volt Electrical Diagnostic Avometer Tool. Color: Black, Condition: New. Listed at 16.80 USD. BT280 AUTOOL BT280 Electric System Tester is the newest generation intelligent Electrical System Circuit Tester with 2.4-inch large-size LCD screen display. It is dedicated to testing all 9V-30V vehicle electrical systems. BT280 is Convenient, Fast, and Intelligent! Product Functions Interface Display Smart Test Multimeter Mode Covered with comprehensive parameters of Multimeter,it can quickly test the DC voltage,resistance,diode,current,and frequency in the circuit system. Oscilloscope Mode Be able to display the parameter curve diagram of the tested component, such as voltage,frequency,time,etc. Component Activation It can generate"Activation"signals for components such as light,motors,and other on-board electronic devices. Relay Test Capable to test the common automotive relay,like 5-terminal relays,and 4-terminal relays. 0-5V Power Supply Capable of setting 0-5V output voltage, used to verify the wiring condition of the tested component. Injector Test It can output different pulse signals to the injector,and provides 4 pulse modes to better detect the condition of the injector. Support Multi-Language 14 languages supported, English, Spanish, German, Russian, Italian, Polish, Portuguese, French, Vietnamese, Malaysian, Filipino, Indonesian, Arabic and Thai. Specifications and Parameters LCD: (320*240 DPI) TFT color display Working temperature: 0-60°C (32-140 F°) Storage temperature: 40-70°C (-40-185 F°) External power supply: 12V or 24V Powered by battery Minimum working voltage: 9V Maximum working voltage: 30V Maximum measuring voltage: 150V Minimum measuring voltage: 0.1V Resistance measurement range: 1 ohm~200K ohm Current measuring range: 0~18A Maximum continuous current: 18A Package List 1pc* AUTOOL BT280 Electric System Tester main unit 1pc* Solid copper test probe tip 1pc* Extension connection line 1pc* Battery clamp 1pc* Relay test line 1pc* Probe adapter 1pc* 25Amp fuse 1pc* User manual 1pc* Storage bag Note: New and old versions are shipped randomly. BT260 Autool BT260 automotive electric system tester is the best electrical tester for reducing diagnostic time in all 6- to 30-volt vehicle electrical systems. And it is powered via the vehicle battery. AC voltage detection, DC voltage detection, Resistance Detection, Diode Test, and Current overload protection will be available to test. DC Voltage Detection Mode While the tool in this mode, contact the probe tip to a circuit, then the LCD display will read the DC voltage with a resolution of 0.1 volt. It can detect the voltage value of the circuit under test AC Voltage Detection Mode While the tool in this mode, contact the probe tip to a circuit, then the LCD display will read the Max. voltage, the Min. voltage, frequency and duty cycle. Detects the maximum and minimum voltage, supply frequency, and duty cycle of the circuit under the test. Resistance Detection Mode While the tool in this mode, contact the probe tip to a circuit, then the LCD display will read the resistance between the tip and auxiliary ground lead. This detection mode can detect the resistance value between probe of the circuit under the test and the auxiliary ground wire. Diode Test Mode It can quickly test the working state of the diode component, and determine whether it is continuity or not. Signal Circuit Testing Once you extract a DTC from the vehicle and realize that troubleshooting begins with some kind of sensor circuit, there is a quick test you can perform to verify the code. Testing your sensor is easy while using the tool. Support Multi-Language English, German, French, Russian, Spanish Italian, Portuguese,Polish, Chinese Current Overload Protection When the current overload, AUTOOL BT260 Automotive Circuit Tester will automatically disconnect the protection circuit to reduce unnecessary losses. 20ft. Extension Cable The tool's long cable allows you to test along the entire length of the vehicle without constantly searching for suitable vehicle grounds. Power Supply 12.0 or 24.0 V power provided via vehicle battery LED Flashlight Integrate LED flashlight on the head, let us work in dark condition easily Product Specifications Display: TFT color display (160 x 128 dpi) Operating Temperature: 0 to 60 ° C (32 to 140 ℉ ) Storage Temperature: -40 to 70 ° C (-40 to 158 ℉ ) External Power: 12.0 or 24.0 V power provided via vehicle battery Dimensions: Length---126 mm (4.96”) ,Width—46.5 mm (1.83”) , Height—35 mm (1.38”) NW: 0.105kg (0.23lb), GW: 0.726 kg(1.6lb) Easy to Operate 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 Package List 1x AUTOOL BT260 Car Electric Circuit Tester main unit 1x User’s Manual. 1x Battery clamps adaptor. 1x Battery clamps 1x Probe tip 1x 6m( 236 inch). extension cable. BT160 Product Description AUTOOL BT160 automotive electric system tester is a Vehicle Electric System Tester to test short and open circuit. This unit is the best electrical tester to reduce the diagnostic time in automotive electrical systems Polarity Testing Autool BT160 can test uncertain polarity of contact in the circuit of vehicle. Unroll the leads Connect red clip to positive terminal of vehicle's battery and connect black clip to negative terminal of vehicle's battery Contact the probe tip to a positive (+), the LED should light RED Contact the probe tip to a positive (+), the LED should light RED Grounding Testing For some components of which negative terminal is required to be well grounded for large current flowing, this tester is a good tool to test their grounding. Unroll the leads Connect red clip to positive terminal of vehicle's battery. Connect black clip to negative terminal of vehicle's battery Press button to “-” side , the LED should light RED , and positive voltage is supplied. Then have the probe tip quickly contact negative terminal of component as close as possible, LED indicator turns to GREEN with buzzer sounding, which means it is well grounded. If NOT, the LED remains RED without any buzzer. Open Circuit Test/Continuity Testing When the polarity of the circuit under test is unknown, it can be detected whether the test circuit is in a continuous or an open circuit state. Unroll the leads Connect red clip to positive terminal of vehicle's battery Connect black clip to negative terminal of vehicle's battery Connect auxiliary ground lead to one side of tested wire along with probe tip connecting to the other side. When continuity is present, the LED will light GREEN. If LED does NOT light up, NO continuity present. Diode Test Quickly test the working status of the diode assembly & determine whether the circuit is open or continuous. Short Circuit Following and Locating In most cases short circuit or instant overload of component will lead to blown fuse or circuit breaker tripping. This tester can search and locate the problem. Unroll the leads Connect red clip to positive terminal of vehicle's battery Connect black clip to negative terminal of vehicle's battery Press button to “-” side , the LED should light RED , and positive voltage is supplied. Remove the blown fuse from the fuse box and begin tracking from two terminals of the fuse socket. Use probe tip quickly contact wire. If LED lights GREEN with buzzer, short circuit or overloading component appears in this side. Please note this wire’s color or identification code. Follow the wire as far as you can along the wiring harness. Locate the color-coded wire in the harness and expose it. Cut the wire. Follow the wire in the shorted direction and repeat this process until the short is located. If there are components in the following wire, check the components individually if good or not. Product Details Specification Operation Voltage: 6-24V DC Overload Protection: 10A Lead Length: approximately 4M (13F) Key Features Quickly check if a circuit is Positive, Negative or Open by probing it and observing the RED or GREEN LED. Quickly activate and check electric components by pressing power switch to (-) or (=) position to determine their electronic and grounding status Test continuity of switches, relays, diodes, fuses and wires by connecting them between the auxiliary ground lead and the probe tip and observing the GREEN LED Find faulty ground connections instantly Follow and locate short circuit. Current Overload Protection Protect the overload by disconnecting the circuit and buzzer alarm to ensure the safety of users and batteries. Description Red LED: Positive voltage supplied or indicated Green LED: Negative voltage supplied or indicated. Power Switch: Press button to “-” side to output positive voltage; Press button to “=” side to output negative voltage. DY18 Applications 1. Test for continuity 2. Test for polarity of a voltage 3. Check switches, relays and the on-off of diodes, fuses and circuits 4. Test for polarity of electric cables and plugs 5. Track and locate short circuits 6. Test for bad ground contacts Specification Operation voltage: 6-24V DC Cable length: about 4m Overload protection: 8A (When the current exceeds 8A, this item will disconnect the current automatically.) Weight: about 200g Features 1. The unit is the best electrical tester to reduce diagnostic time in automotive electrical systems. 2.Its long cord makes your tests easy. 3.After a simple hook-up of the unit to the vehicle's battery, the automotive technician can conduct a positive or negative battery current to the rocker tip of the switch forward or rearward. 4.The unit has short circuit protection and can test for bad ground contacts instantly. 5.It allows you to track and locate short circuits. 6.You can also test continuity with the help of your auxiliary ground wire. 7.For damage caused by non-human factors,We promise to resend parts for free Do's and don'ts 1. Do not use the item around explosive gas, vapor, or dust. When the power switch is pressed (or rocked), battery current is conducted directly to the tip which may cause sparks when contacting ground or certain circuits. 2. The unit is not to be used with 110/220V house current, it is only use for DC 6~24V systems. 3. Do not use on AC voltage. 4. After you finishing checking vehicle, correctly restored all the connection-s which you 5. Always follow the instructions and procedures indicated in the vehicle's service manual before attempting to disconnect any part or subsystem of the electrical circuit. 6. Never touch any dangerous part of the vehicle with your hand for safety. Don't touch any live conductor with hand or skin. 7. Don't use it if it is damaged. 8. Some components of vehicle work on low voltage, they cannot withstand the voltage allied by the item. To avoid damage for these components, don't use the item to apply voltage directly or indirectly. 9. Before driving, please always make sure that the vehicle is safe and reliable. 10.Don't use this item when driving.