u/DeltaEchoLights

Recently purchased a 500-196-32 from a third party online vendor. It arrived and it looks brand new but the certificate shows it as a model 30. It also looks awfully similar to knockoffs AliExpress has listed for a faction of the price. Any advice on how to check the authenticity? Ideally, a platform where I can check the serial number and get a definitive yes/no feedback whether it’s real. Thank you