The keyword dvmm 191 can also be interpreted as a combination of a monitor model (DV191) from the brand Diamond Digital.
The most plausible interpretation of "dvmm 191" is a simple typographical or OCR error for the Keithley . The Model 191 is a well-documented, high-precision instrument from the Keithley Instruments (acquired by Tektronix in 2010), a company renowned for its accurate electrical measurement equipment. dvmm 191
Could you please clarify which of these you are looking for? The keyword dvmm 191 can also be interpreted
(Intervention): The treatment or test being considered (e.g., "Daily Omega-3 supplements"). "Daily Omega-3 supplements").