OBDResource High-Pressure Adjustable Dual-Hole Spark Plug Ignition Detector 1. Specifications: EUUS plug (optional) 2. Power supply: 100-240V 3. Speed: 0-6000 rpm 4. It can be used to safely and quickly test spark plug performance 5. ST100 can simulate the working conditions of actual engines, and has the advantages of simple structure, easy use, large output energy, and durability. 6. Easy to operate, equipped with convenient power cord and plug to use 7. Just put the spark plug into the product hole and press the switch to test 8. Easy to use, non-professionals can easily master the operation steps 9. OBDResource ST100 is equipped with a working indicator light and a power indicator light, which can more intuitively display the status of the spark plug test and facilitate real-time monitoring of whether the test is running normally. 10. Compatible with 12V automotive spark plugs of various specifications on the market 11. Supports 100V~240V input voltage and wide test range 12. Supports simultaneous testing of 2 spark plugs, compatible with 110V-220V voltage input 13. Dual-hole tests can be performed at the same time, and two spark plugs can be tested and observed at the same time. 14. It is convenient for users to make accurate judgments on spark plugs in poor working conditions through comparative tests and adopt targeted treatment methods. 15. Double hole: 13mm 16. Weight: 380g