Ex-Demo (little use) TSI PVM610 electronic micro-manometer.
Sold complete with carrying case, batteries, instruction manual, calibration certificate (expires 18 Apr 2023) and a 6m warranty.
Instrument Manual providing full tech details:- TSI Airflow PVM610 user manual
This is a precision Manometer which costs £530 new!
Will require a pitot tube/silicone tubing – Pitot Tubes