A) Do you have to calibrate (and buy a calibration weight to do so) or is this guaranteed to be pre-calibrated? B) Is this scale self-calibrating?
936412
Love this scale, It's already pre-calibrated, I use it often and never had inaccurate problems.
936413
When I purchased this scale it was already pre-calibrated. I just used it right away and have never had a problem with it being inaccurate!
1178354
Unfortunately - no. It is so accurate because it is so sensitive. You need to find a flat place to keep it permanently - although it can be reset whenever you move it. It seems like a drag, but the other wonderful aspects of this scale far outweigh this one inconvenience.
1160630
I never calibrated and just started using it. I took several packages to the post office and everything checked out perfectly. They explain how to calibrate it in the manual.
1349896
Mine is not calibrated and is way off. They expect me to find a 5 lb. weight somewhere in order to calibrate the item.
1171277
call customer service # in your book, sounds like you need to re calibrate it. LOL Get ready take to a gym, you need like 300 lbs of weight to calibrate.
507473
Mine arrived perfectly ready to go. No calibration needed. Great scale. Works perfectly for my needs and looks sleek and modern.
2036096
you need to calibrate with something if you want to have a scale that measures properly; 1 of the 3 scales i've bought similar to this weighed accurately from the factory; one was 1.5% off the other was 3-4% off. I was able to calibrate one of my scales using 100ml and 200ml of water; however i was able to use a scale I knew was accurate to measure that water (since it really was maybe 95ml water and 5g of plastic cup). the nickel =5g does work pretty well but it would take 100 to get 500g; i've seen a batch of nickels off quite a lot but on average in my tests they come out very close to 5.0g (example 7 nickels should be 35g and was 33.5g but by the time I got to 10 it was 49.8g or 50.1g for example). You can get a few rolls of nickels or you can just buy a 500g weight for about the same price.
275764
I have purchased two of these and both were in perfect calibration out of the box. One is still new but the other one has been working well and has held calibration for 10 months. If you do want to have calibration capability all you need is a 500 gram weight. a nickle weighs 5.1 on both of mine and a dollar weighs 1 gram even.
1344564
I only use this scale at my farmers market to weigh produce. I believe you have to get a special scale to get what you want as far as calibration. I know there out there. I would google scales with calibration and that should take you to a company, but expect to spend quite a bit.
1892993
Its always best to calibrate to a known weight. I did not have any known weights, so I calibrated it to zero (ie no weight). For my purposes, this was sufficient.
498656
It came calibrated but I also had an old school fool scale that I used to verify the digital scale was correct. There is also an instruction manual.
501128
It comes with maybe a ketchup packet worth of calibration solution which will calibrate initially. You can go about a month without calibrating. It falls off a point or 2 by then.
1105794
There's no way. It's supposed to be auto calibrated. Mine was always off by 20 to 30 pounds. Never the same amount, though. Worst scale ever.
2277919
It did not need calibration although I did check to make sure it was correct when I received it. I have owned it for over a year now and I keep it turned off when not using it so the batteries are still strong. I did not buy an adapter. I truly love mine. As I get older, it gets harder and harder to see, so having the weight displayed right up close is wonderful. I don't think you will be disappointed.
620892
They make calibration weights. Mine came out of the box right on the money. I haven't touched the calibration. I'd imagine yours is pretty close too. Mine says it was calibrated at the factory, and could change once in the home. Mine was fine. I'd bet you can weigh your parrot within a gram. If you can get it to stand on the scale.
60802
I do not believe this unit required calibration. I checked it against some 1 to 4 oz letters I had and it registered correctly. I have used this for up to 13 oz, including flats, and have sent a lot of mail using it. So far, no issues. Good unit for the price.
1743583
Mine is always 4 pounds off and I don't know how to fix it. It zeros itself each time I use it , but then is 4 pounds off one way or the other. I think it is just a bad scale. I am going to get a different scale from a different company. Sorry I couldn't help.