What is the unit of readout and accuracy?
1126310
It reads in pounds or kgs and is very accurate. Weighed a 25 lb dumbbell to test it and it was right on the nose
1126311
Accuracy aligns well with another scale I bought from China for only $3.20, so I use the cheaper scale now.It is only called "Portable Electronic Scale" & is 3.25x2 inches & has a dark blue case. A friend also uses it in his bike shop. Works fine.Units of read out on the cheaper one are lbs., ozs., kg., & "JIN" ? It weighs to 88 lbs (40 kilograms) I guess for the luggage limit. It amazes me how many cheap things I buy from China directly that are of quality and work great. Shipping is always included (yes at $3.20!) and usually takes about 10 days, maybe 2 weeks. Accuracy aligns well with another scale I bought from China for only $3.20, so I use the cheaper scale now.It is only called "Portable Electronic Scale" & is 3.25x2 inches & has a dark blue case. A friend also uses it in his bike shop. Works fine.Units of read out on the cheaper one are lbs., ozs., kg., & "JIN" ? It weighs to 88 lbs (40 kilograms) I guess for the luggage limit. It amazes me how many cheap things I buy from China directly that are of quality and work great. Shipping is always included (yes at $3.20!) and usually takes about 10 days, maybe 2... » Read More Accuracy aligns well with another scale I bought from China for only $3.20, so I use the cheaper scale now.It is only called "Portable Electronic Scale" & is 3.25x2 inches & has a dark blue case. A friend also uses it in his bike shop. Works fine.Units of read out on the cheaper one are lbs., ozs., kg., & "JIN" ? It weighs to 88 lbs (40 kilograms) I guess for the luggage limit. It amazes me how many cheap things I buy from China directly that are of quality and work great. Shipping is always included (yes at $3.20!) and usually takes about 10 days, maybe 2 weeks. « Show Less
1126312
it is adjustable metric to standard ... I prefer standard lb,s ounce's and measurement accuracy is ounces, no lower scale ... hope this helps. fyi I have been happy with my scale
610103
Quite the range of values. Is there anyone with an actual measurement rather than from printed specs?
691555
Yes! During set up you can choose Metric or English units of measure to display.
1494478
I have no idea. All I know is that it proved to be unreliable in it's readings and I returned it.
1162014
According to the data sheet found at http://www.kidde.com/Documents/900-0121%20sheet.pdf it does meet that spec:"The unit's CO sensor shall be of a fuel cell design and shall meet the sensitivity requirementsof Underwriters Laboratories UL2034 Single and Multiple Station Carbon MonoxideAlarms. The unit shall provide accuracy of +/-20% + 15 parts per million (ppm) when readingCO concentration levels."I don't know what else (if anything) that standard requires.Hope that helps.
924892
It reads out in grams or tenths of an ounce, such as 1.7 ounce. If it does it in hundredths of an ounce, I have yet in years of owning it figured out how to do that.
1680811
Hi, I only use it to read and reset the error codes. I've not used it to measure anything in metric or English units.
402082
Unless you're using it in doctor's office and comparing the Withings read to the doctor's professional read, I don't know that one can determine teh Withings accuracy. Certainly not home alone. But I can say the numbers I got from it were consistent with those I got at the doctor's office under comparable circumstances (sitting still in chair at a calm time of day).
1940815
Calibration is not possible to the best of my knowledge. I have found it to be accurate + or - 1 or 2 grams and I think that is more a sensitivity issue (placement, etc). Hope this helps. As noted above - "tare" is certainly possible if that is what you meant.
2207703
Sorry, can't say for sure in the grain unit of measurement. In grams tho, it was and is highly repeatable down to .001g, give or take .001 or .002g
1855809
Not a real answer, BUT - gave these to each of my kids to use on the grandkids. They no longer use them as they could never get a consistent reading. I think the technology has a ways to go.Sorry not to be of further help.
375693
Marjorie.....slightly different in readouts.....but they are interchangeable.....HOWEVER....this particular thermometer is not that accurate, so I would be wary of purchasing it....just an fyi.
1912664
Yes. There is an unassuming button on underneath the display for units. Press the button to set the unit of measurement.
612154
No. I found my unit to be unusable...I couldn't tell what it was actually measuring. This computer made it go nuts, but when I set it on the keyboard, then slowly took my hand away from it, the 1200+ reading dropped to zero, implying that it was measuring some combination of skin conductance plus ??? Do not buy this thing.
1485372
Yes. Unit is capable of metric units. Setup instructions are very clear in the manual.
1987770
Well...it calibrates to a given 1 gram weight, and once calibrated it gives precise weights on other known items as well...down to fractions of a grain. It also repeats those measurements. I don't know the factory tolerances but for my usage its more than accurate (and repeatable) enough.
1244503
I guess by using a known value, like the calibrations buffers, 4.0 or 7.0. It's like using a calibrated weight to check a scale