Review on 🔧 BETOOLL 8pcs Petrol Engine Cylinder Compression Tester Kit: A Comprehensive Automotive Tool Gauge by Andres Black

I have seen many reviews questioning the accuracy of the gauge and comparing its accuracy to a 'known accurate gauge' as the other gauge is a brand name. I calibrate for a living, if your expensive meter comes without a calibration certificate, or if it has been dropped or the certificate is out of date, you cannot say it is a known good meter. I checked this meter with a calibrated meter. It was perfect up to 100psi and then dropped 1psi all the way down to 160psi. very acceptable. I can't speak to the accuracy of every sensor, but mine is accurate. The fittings are tight, the body is good, there is a Schrader valve. no complaints.