Supertech Power Control offers an STPC brand spark plug cleaner and tester. This is fully enclosed in FRP body, with different rubber adapters for cleaning and testing of various plugs like M10, M12, M14 and M18. The cleaner unit with special sand connected to the compressed air system operates at minimum pressure of 5 kg/cm² to maximum 10 kg/cm2. With the protective shield in the cleaner unit in place, the unit has to be operated as specified to complete the cleaning cycle. The unit is supplied with M10, M12, M14 and M18 blind plugs with air screw fixed over the respective plug adopters. The spark plugs to be checked, depending upon the thread size, are fixed over the respective plug adopters by removing the blind plug and air screw. During testing, if there is any jump spark over the porcelain insulated portion, the plug should be discarded. Its specifications consist of an input voltage of 220 V AC 50 H, working air pressure of 5 to 10 kg/cm2 and plug size of M10, M12, M14 and M18.