Review on 🔍 Enhancing Engine Performance: Leimo Cylinder Compression Leakdown Diagnostics by Noel Schmits

Others wrote about the quality of the end product. Other reviews say the tube that connects to the spark plug hole has a swivel - seems to be a defect as I haven't had that problem. Adapters appear to be screwed in correctly. The gauge itself works fine, but won't let you go to 100psi or more than 35psi, which is enough to do the test. If you are a professional mechanic, buy a better, more accurate and more durable tester. For DIYers, it should be enough for several cars to use it on in your lifetime. If not, you've lost less than $40. I read the reviews and thought I'd return mine if it was defective, but it was good