Check the listing for details. Car Spark Plug Tester 12V Ignition Spark Plug Analyzer 5 Holes Diagnostic Tool. Condition: New. Listed at 64.99 USD. AUTOOL SPT360 spark plug tester is a digital high-frequency tester, which is mainly used to test the performance of spark plugs safely and quickly. It has a test frequency of up to 9000 rpm and is compatible with spark plug tests for all crankshaft engines and motorcycles on the market. This product adopts the position design of standard comparison test, which can compare five spark plugs at the same time, which is professional and efficient; it has the function of simulating the real speed of the engine and displaying the working frequency value of the tester,and the whole process is digitally controlled, thus improving the accuracy of spark plug testing and the working efficiency of technicians.Simulate RPM Testing This feature simulates the operational status of spark plugs during enginefunction, offering adjustable simulated RPM.Comparative Testing It enables the simultaneous testing of four test spark plugs andone new spark plug for more straightforward testing outcomes.Safety Cover Prior to testing, close the protective cover to effectively prevent injury from sparks to individuals.Specification:Input power: AC 110V±10% Output power: DC12V±2 1A Analog revolution: 200~9000rpm Environment temperature: 0℃~+45℃ Relative humidity: