This is the exact problem tho, that I have been having with One Touch. Going around telling my CDE that I am getting odd massive drops in BG after one unit. Now that looks more like it is the meter’s fault. I had an Aviva meter, and that was more accurate and also my lab A1C matched that more than the One touch. Now I am testing this Guide meter in the Sugr bundle, and it seems much more accurate. I hate the strips, but if it makes my test results better I will stick with it…
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the strips that I hated the most were the thin gold strips for one of the One Touch meters. I forget the model. I periodically toss meters into the attic or other storage areas. My wife and I could start a meter musuem if we gathered them all up. Not only that, we’ve thrown out a bunch of them and still have lots of them.
#FWIW I used my first U.S. sensor with a reader from Italy (purchased online, no prescription) and what it’s done is grant me the European times: 14-day use with a one-hour warmup.
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Thanks for reporting this, @Larissa3. Many people may follow your path.
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@Larissa3
What units does the Italian reader report in? Is that configurable or hardcoded?
It’s in the U.S. format: mg/dL.
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Make sure to check that the reader is in mg/dl when buying online, since the rest of the world uses mostly mmol/l. It is hardcoded into the meter.
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I was hopeful that this would solve my problem too. And it did, for about 3 hours 
… I’ve completely given up faith in the Libre and don’t even bother to take the reader with me even though the sensor is still on my arm. I do give them points for making something that you can barely tell is attached to your body. Every once in awhile I get a period of a few hours where it is pretty accurate, but the majority of the time it is 30-40% off. The inaccurate data I am receiving is completely and totally useless in helping to manage my Type 1 and spot trends etc. Plus I cannot give the downloaded reports to my doctor because the numbers and trends in no way represent my actual BG. For example it will say I’m 200+ for hours when I’m actually 130-140 or so.
Half for fun and half as a last ditch effort to possibly breath some life into the failure of the Libre system, I am going to try putting the sensor on my abdomen. I know they say not to do this, but anything diabetes related has never worked on my arms, and always works best on my abdomen. It’s a long shot, but hey, what have I got to lose?..
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I will be interested to hear how that works for you.
I will definitely keep you updated!
I’m really disappointed to hear how many of you are getting inaccurate data. I have a Libre on order and have been so waiting for these to become available. I did use the Freestyle Libre Pro from my endo’s office for a 13-day period last winter. Although readings were blinded to me, I kept enough records of my fingerstick readings that I was able to compare after the endo printed the results and I thought there was sufficiently similar results that I’d be able to use it for dosing. Time will tell, I guess.
Not everyone is having an issue with the system. I would give it a try and keep an open mind! 
I use a Spanish/Italian Libre reader I got off Ebay and get the message of incompatible sensor when using US sensor. Do you know the reader version of yours’? When did you purchase it? I’ve been using mine for about 9 months, so I wondered if there is an updated version.
Would like to eliminate the 12 hour start period of the US system, and the cost of Ebay sensors.
Hm. Strange. My reader is about a year and a half old–I bought it from the
Abbott site in Italy (not eBay). Maybe the newer readers have code in them
that makes them recognize where the sensor is from?
I checked the the system info tab in the system status menu of the reader and it says the Spanish/Italian reader version is 2.2.9 0.94 with sensor version 223
The American version say reader version 2.3.3 0.94 with sensor version version 223
Appears both readers use same sensor.
Thanks for any information you can give. I can live with the 10 day limit on US sensors as I find the European sensors are less accurate after 12 days, but I apply sensors 24 hours before activating them so they can become acclimated to site and see no use for the US readers 12 hour start up period.
My reader is 2.1.2 (version .94) also sensor version 223
Thanks!
Guess I’m stuck contacted Italy site but guess there is no solution as I’m in the US and Abbott will not sell across borders.
By the way, your reader can’t be, or shouldn’t be both Spanish and Italian.
Spain uses the different blood glucose format, mmol/l.
Seller off eBay said it was Spanish version, has language option of Spanish, English and Italian and the units are mg/dL.
Been looking on eBay Italian site for readers and so far see only sellers from Germany offering readers.
I finally was able to get a Libre reader from Italy (used) and discovered the one I received is the same as the Spanish reader same options (languages), units and version number reader 2.2.9 (version .94). You probably have an earlier reader than mine lacking a code for sensor region.
Does your unit still accept American sensors? I assume that all sensors are universal worldwide, but probably have a code on it like DVD’s that limits which players will play it. (ie: US=1, Eur=2, Can=3, etc, etc that Reader’s will read) Probably newer readers have this built in, seems stupid as if you are in a foreign country you can not use “local” sensors.