Emerson Rosemount 2051 Inline Pressure Transmitter - Condition Unknown

Description

Emerson Rosemount 2051 Inline Pressure Transmitter
I'm not sure on the condition, I have multiple of these, and they are not something I know how to use.  Please see pics for condition.  I am not sure if they work.  If you get it and it doesn't work I will accept a return.
If you have questions please message me!