Review on Pulse Oximeter Fingertip: Digital Blood Oxygen Saturation Monitor For Heart Rate & SpO2 Level Monitoring - Portable LCD Pulse Oximeter With Batteries Included by Kenny Beyer

This meter is easy to use and seems to be reasonably accurate, though I have no good way to tell for sure. The display is small, but very nice, and reorients as you reposition it - nice feature.My only niggling complaints:1) It starts up and displays 96% or 95% for a few seconds before it shows you the real reading, so you have to ignore the first few seconds of readings (it seems to take at least 30-60 seconds to really settle in on a "good" measurement number, but it's passable after 5-10 seconds.)2) You can't easily turn it off, so don't. Trying to use the button to turn it off launches a config menu where you can easily accidentally foul up the defaults and alarm thresholds. Just take it off your finger (the display will note your finger isn't present) and let it turn itself off in about 5 more seconds. Much easier, and you won't have to do a factory reset to put the thresholds back.3) It comes with *really* crappy Chinese batteries that have a staggering amount of mercury in them (8-10%) and on top of that, only ran the device for two days of use before dying. (The Delco alkalines I replaced them with have been running for almost a month, and the battery gauge says they're still nearly full.)4) The serial number and other label info rubs off after a couple of weeks of use, even without wiping the device down at all. Hopefully you won't need that info.Overall, a few pretty minor quirks, but this seems to be a fairly solid product at a very good price - I'm happy with the purchase.