For home use (not a veterinarian), you may need some information from your vet.
I bought this product after reading about various monitors and deciding this one appeared to be the best.  I bought it to be able to measure our geriatric cat's blood pressure at home.  She had a stroke and to help her urinate more easily, my vet recommended a med that can lower blood pressure.  Since she also has kidney dysfunction, not a good thing.  So wanted to use the monitor to determine her home blood pressure before starting med, then monitor it while she's on med.  The monitor, blood pressure cuff, various attachments are all easily used.  The User's Manual tells you everything you need to know to use the monitor/connect various items/etc.  Only pieces of information I needed from my vet to use the monitor and get an accurate reading was (1) where the main leg artery is (cuff is positioned based on artery and User's Manual intended for vets doesn't identify where the artery is of course) and (2) my cat wouldn't keep her leg still so needed to know if I could hold the leg at some point where it wouldn't effect the blood pressure result.  This would be an excellent monitor for a veterinarian clinic and for those people who are willing to spend the money and need to be able to measure their pet's blood pressure at home.  Note the "package" purchase I made includes the 6 different size cuffs (for our cat, smallest was appropriate cuff) and the ac adapter.  I didn't read the Amazon listing well enough and didn't think the cuffs came with the monitor so I bought them separately and then returned them as "bought by mistake".  Amazon, as always, made it extremely easy to return the cuffs and receive my refund.
Rating: 5 stars