Can the embedded lambda probe be determined optically and measurably?

Hello Forum,
my question doesn't quite fit here. Since it's about a lambda probe, I might actually be in the right place here, I think.
My pellet boiler seems to have a faulty lambda sensor. (Deviation from the last automatic calibration is relatively large) Can you determine the type solely based on the appearance, number of connections, color labeling of the wires, voltage values? It is supposed to be a Bosch 4.9 or NTK broadband sensor. However, I don't know if the source is reliable. Are there many different types/models?
I'm just curious - if it's difficult, I'll just have to spend the 199€ on an original probe. However, it would be frustrating if one had to spend only a fraction of it.
A negative response wouldn't be so bad at this point either.

Thank you for the responses.

Happy New Year and all the best!
Best regards, Jörg

I have now ordered the original part for 199,-€.
The post can be deleted - I think it won't provide any further insights here.
Despite that, thank you for reading

Thanks for the feedback, it doesn't hurt either.