12V 24V Car Electrical Circuit Tester Voltage Diagnostic Probe Kit Avometer CMTOOL 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 ModeCovered with comprehensive parameters of Multimeter,it can quickly test the DC voltage,resistance,diode,current,and frequency in the circuit system. Oscilloscope ModeBe able to display the parameter curve diagram of the tested component, such as voltage,frequency,time,etc. Component ActivationIt can generate"Activation"signals for components such as light,motors,and other on-board electronic devices. Relay TestCapable to test the common automotive relay,like 5-terminal relays,and 4-terminal relays. 0-5V Power SupplyCapable of setting 0-5V output voltage, used to verify the wiring condition of the tested component. Injector TestIt can output different pulse signals to the injector,and provides 4 pulse modes to better detect the condition of the injector. Support Multi-Language14 languages supported, English, Spanish, German, Russian, Italian, Polish, Portuguese, French, Vietnamese, Malaysian, Filipino, Indonesian, Arabic and Thai.Specifications and ParametersLCD: (320*240 DPI) TFT color displayWorking temperature: 0-60°C (32-140 F°)Storage temperature: 40-70°C (-40-185 F°)External power supply: 12V or 24V Powered by batteryMinimum working voltage: 9VMaximum working voltage: 30VMaximum measuring voltage: 150VMinimum measuring voltage: 0.1VResistance measurement range: 1 ohm~200K ohmCurrent measuring range: 0~18A Maximum continuous current: 18A Package List1pc* Electric System Tester main unit 1pc* Solid copper test probe tip1pc* Extension connection line1pc* Battery clamp1pc* Relay test line1pc* Probe adapter Product DescriptionAUTOOL 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 systemsPolarity TestingAutool BT160 can test uncertain polarity of contact in the circuit of vehicle.Unroll the leadsConnect red clip to positive terminal of vehicle's battery and connect black clip to negative terminal of vehicle's batteryContact the probe tip to a positive (+), the LED should light REDContact the probe tip to a positive (+), the LED should light REDGrounding TestingFor 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 leadsConnect red clip to positive terminal of vehicle's battery.Connect black clip to negative terminal of vehicle's batteryPress 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 TestingWhen 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 leadsConnect red clip to positive terminal of vehicle's batteryConnect black clip to negative terminal of vehicle's batteryConnect 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 TestQuickly test the working status of the diode assembly & determine whether the circuit is open or continuous. Current Overload ProtectionProtect the overload by disconnecting the circuit and buzzer alarm to ensure the safety of users and batteries. DescriptionRed LED: Positive voltage supplied or indicatedGreen LED: Negative voltage supplied or indicated.Power Switch: Press button to “-” side to output positive voltage;Press button to “=” side to output negative voltage. Short Circuit Following and LocatingIn 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 leadsConnect red clip to positive terminal of vehicle's batteryConnect black clip to negative terminal of vehicle's batteryPress 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 DetailsSpecificationOperation Voltage: 6-24V DCOverload Protection: 10ALead Length: approximately 4M (13F)Key FeaturesQuickly 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 statusTest continuity of switches, relays, diodes, fuses and wires by connecting them between the auxiliary ground lead and the probe tip and observing the GREEN LEDFind faulty ground connections instantlyFollow and locate short circuit. PaymentDelivery detailsTerms of salesAbout usContact usPayment1. We accept PayPal only.2. Credit card (Visa, Eurocard/MasterCard, Amex, and Switch or Visa/Delta) payment can be accepted ONLY through PayPal (You dont need a PayPal account)3. Other payment methods (Bank transfer, Cheque, etc.) are NOT acceptable4. Please make the payment within 3 days.Delivery details1. Item will be shipped out within 5 working days (except weekends and holidays) after the payment is cleared or received.2. We will send item to your Confirmed Shipping Address in Paypal only.Please confirm your order and address before you bid or pay the item. 3.International Buyers Please Note: 1)Please check with your country customs office to determine what these additional costs will be prior to bidding / buying. 2)Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer responsibility.Terms of salesItem may be returned for refund or replacement within 30 days of the purchase date. Returned merchandise must be unused, in original packaging and include all accessories. Shipping costs are non-refundable.Defective products may be returned for repair up to 1 year from the purchase date. Repairs will be processed through the manufacturer, we will assist in the repair procedure in any way we can to expedite the process.Before any return, a Return Merchandise Authorization (RMA) must be obtained by contacting the seller. Any products returned to us without an RMA will be sent back to the buyer at his/her expense. About usWe are a professional worldwide company, with own factory located in China.We are reliable supplier to both wholesalers and retail sellers. We supply many products on Automobile consumer. Also offer reasonable prices , excellent customer service and a reliable credit standing are our target!It now own four stocks in the world: China warehouse, US&DE warehouse . it is now one of the biggest online commercial corporations in China. Contact usOur normal business hour is Monday to Friday 9:00 AM to 6:30 PM Beijing TIME. Please email me through "MY MESSAGES" on eBay, if you have any questions about our listings or inventory or troubles. 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