Review on 🔌 Efficient Diagnosis for 12V Vehicles: AUTOOL SPT360 Car Spark Plug Tester and Ignition Tool by Ken Coste

Simple yet easy to use, you insert a new plug into the first port and up to 4 used plugs into the other ports. Turn it on and it starts firing at 2000 rpm. You can increase and decrease the rate of fire, and it will turn off after a few seconds of firing. The spark can be adjusted up to 9000 rpm to help diagnose spark plugs that work well at low engine speeds but have problems at higher engine speeds. The spark plug seat is a little loose, but works perfectly and I was able to quickly see which of my old spark plugs were still OK. The new spark plug is designed to compare sparks to ensure they match the reference plug and are easy and quick to test. see if they work. This appliance is somewhat dangerous if you touch the plugs while it is in operation, so you should keep it away from children or people who do not understand how the tool works. There is no need to insert 4 used plugs at the same time, 1-4 can be used at the same time. Beautiful machine with metal body. Happy with this tool. It's basic but works well and seems reliable.