Review on 🔧 DASBET Petrol Gas Engine Cylinder Compression Tester Kit with 0-300 PSI 3" Gauge, O Ring, and Auto Tools by Travis Caminiti

I bought this to use with my 60cc kids road bikes. We recently had one of his engines overhauled by a world renowned engine builder less than an hour ago. Used this gauge to measure base compression for comparison when the engine was worn. The engine read 25psi (the manufacturer says it was 120psi when it left the shop). I called the shop only to be told that this sensor I have shouldn't work and asked me to compare it to three of our other bikes. All 3 bikes are showing pressure in the 22-25psi range when they should all be 100psi bikes. I gave one of the bikes to a friend who has a truck rig and used their sensor. The bike reads over 100psi! This sensor is scrap and will be returned.