Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: It gets kind of annoying
Review: Most peak flow meters that you buy at the pharmacy or through Amazon are going to have some type of certified standard of accuracy, and this one is no different. The readings on this PFM are consistent with readings from PFMs that we have had in the past, so I'm pretty sure it works fine. The one thing that I really can't stand about this thing is that to reset the meter, you have to tap the unit on a firm surface until it reads zero. Not very convenient, and when you try to take three readings to ensure accuracy, it can take a while to get it done. I don't understand why they would make a product that you have to bang against something, when there are so many PFMs out there that you can just reset by sliding the reader back with your finger.
