Spark Plug Tester Ignition Tools Double Hole Wiring Lgnition Spark Plug Analyzer  This spark plug tester has two spark plugs, you can judge the performance and ignition strength of the spark plugs by comparison, and replace the damaged spark plugs in time; the spark plug tester is equipped with the latest car spark tester and has a special protective cover design. Cover the protective cover before use to ensure the safety of the operator during the test, and visually observe the test results.  Spark Plug Tester‘s Specification: US power supplySize: 14*11*9cmWeight: 386gPower cord length: 115cmPower Adapter Input: 100-240V ACOutput: 12V 1A DC   Spark Plug Tester’s Feature: 1. By comparing the spark intensities of the two spark plugs,judge the performance and ignition intensity of the spark plugs,and replace the broken spark plugs in time. Spark plug tester has two spark plug socket, you could compare and test to make an accurate judgment at the same time. The design of the protective cover can prevent you from the risk of electric shock during the test,which effectively guarantees your safety during the operation. 2. 12V Gasoline vehicles car spark plugs, 100V-240V input voltage . used to test 12V gasoline vehicles car spark plugs (a diameter of 12mm).Universal for spark plug tests crankshaft engines and motorcycles. 3. The working principle of the car spark plug tester is to test the performance of the spark plug by simulating the work of the engine. Suitable for spark plugs of most 12V gasoline cars. 4. Spark tester automotive is easy to operate, and you can start using it after connecting the adapter. you can adjust the working frequency in the range of 0~6000rpm .Spark plug tester can also simulate the work of the engine, Restore car start which can better test the spark plug. 5. In order to make the use process safer, the spark plug tester comes with the latest car spark tester with a special protective cover design. Cover the protective cover before use to ensure the safety of the operator during the test and observe the test results visually. 6. Made of durable ABS material,which has the characteristics of impact resistance and heat resistance.Lightweight and portable, can be placed in the repair package for a long time. Wide range of uses—–professional detector suitable for car owners Usage: Test spark plug performance and ignition strength①This igniter can be used in spark plug wholesale stores to display product qualityAs a gift to customers.②Used in 4s stores to display the ignition effect and principle of automobile spark plugs.③ It is used to observe the operation of the spark plug of your own vehicle and compare the ignition effect.④Used for testing spark plugs before loading. The poor work of the spark plug is manifested in the driving of the car as follows: 1. Insufficient power, unstable idle speed, lack of cylinder2. Action inability to accelerate bad3. Unsteady driving, bad air conditioning4. Fuel consumption increases black smoke5. Engine shaking exhaust emissions are not up to standard6. The engine is not easy to start, etc.   Spark Plug Tester instructions:  Step 1: Please insert the spark plug into socket ① or socket ②Step 2: Close the protective cover, insert the power adapter into the socket on the right side of the product ,connect the external power supplyStep 3: Turn the switch clockwise, the indicator  will light up, and the high voltage indicators  (corresponding to the socket ①) and  (corresponding to the socket ②) will also light up.Step 4: Continue to rotate the switch to adjust the working frequency from 1000 to 6000 rpm. The higher the frequency, the stronger the spark plug.   Spark Plug Tester’s Packing List: Spark Plug Tester *1Power Adapter * 1User Manual (English)*1