Check the listing for details. AUTOOL 5 Holes Car Spark Plug Tester Analyzer Digital Ignition Testers Tool 110V. Condition: New. Listed at 69.99 USD. AUTOOL SPT360 5 Holes Car Spark Plug Tester Analyzer Digital Ignition Testers Tool 110V AUTOOL SPT360 is a professional digital display high-frequency adjustable spark plug sparkover tester, use the high-voltage ignition coil generates ahigh-voltage (10000 volts or more), and the spark plug diverts it form high-tension ignition coil into the cylinder engine, spark between the spark plugelectrodes will ignite the mixture. Which can simulate the real speed with high precision and digital precision control to test the performance and ignition intensity of spark plugs. Its five holes can be compared at the same time and the test frequency is as high as 9000 RMP. This professional tester which greatly improves the accuracy of the test and the efficiency of the operator. Multi-holes Simultaneous Comparison In order to improve the working efficiency and make an accurate analysis, you can simultaneously test and compare one normal spark plug with the other four spark plugs. Three Years Warranty For damage caused by non-human factors, AUTOOL promises to resend parts for free within 3 years. For any needs, you are warmly welcomed to contact us and we will get back to you ASAP within 24 hours.Digital Display Screen The AUTOOL SPT360 Car Spark Plug Tester is designed with a digital display screen, aiming for precise value control and comparison. Widely Applicable&High Testing Accuracy The AUTOOL SPT360 is compatible with spark plug testing of all crankshaft engines and motorcycles on the market, which can simulate actual speed and test the performance of the spark plugs at different RPMs as well.WIDE RANGE WORKING Compatible with all crankshaft engine and motorcycle spark plug testing among the market. The operating frequency range can reach 200~9000 rpm. Operating frequency up to 9000 rpm the higher the frequency, the stronger intensity of the spark plug. Specifications: Input power: AC 110V±10% 50Hz/60HzOutput power: DC12V±2 1AAnalog speed: 200~9999 rpmAmbient temperature: 0℃~+45℃Relative humidity: