▪ It Is Suitable For Petrol Engines On Lawn Mowers, Motorbikes, Cars, Trucks And So On. ▪ Quickly Diagnose Problems with Pistons, Rings, and Valves ▪ Gauge has dual color scale with 0-300 PSI, 0-20 kPa ▪ Easy Pressure Release Button on Side of Tester ▪ Brass corrosion resistant fittings