My Weigh Calibration Weight Set
Class M2 ~ 17 piece weight set
|"In A Nutshell"|
|(1) 100 g||+/- 15 mg|
|(1) 50 g||+/- 10 mg|
|(1) 20 g||+/- 8 mg|
|(1) 10 g||+/- 6 mg|
|(1) 5 g||+/- 5 mg|
|(1) 2 g||+/- 4 mg|
|(1) 1 g||+/- 3 mg|
|(1) 500 mg||+/- 2.5 mg|
|(2) 200 mg||+/- 2 mg|
|(1) 100 mg||+/- 1.5 mg|
|(1) 50 mg||-|
|(1) 20 mg||-|
|(1) 10 mg||-|
Use these calibration weights alone, or combine them to accurately calibrate your digital weighing scale.
Good price for this kit, works as expected.Reviewed by: Tony from Cleveland on (10/12/2014)
I just wanted a few small weights to set spring tension on the keys of a small pipe organ. 5 gram increments would have been OK. Got much more than I needed, but the price was right. My only complaint was that the 5g weight wasn't flat on the bottom, so I ground of a few mgs!Reviewed by: David from Utah on (4/8/2013)
I bought this set of weights to check the accuracy of my reloading scale. Unfortunately, the set came without the plastic cover for the wafer weights. Fortunately, after one call to Will Knott, a shiny new cover arrived at my door step in about 2 days, no charge. Unbelievably great customer service! The weights are good too.Reviewed by: B. Bellas from New Boston, MI on (3/27/2013)
A good value for my needs. All weights within specifications except for the 2 mg (2 included) and 1 mg weights. The 2 mg weights came in at 2.015 and 2.025 grams. The 1 mg weight a dismal .830 grams. These were tested with an electronic powder reloading scale and a precise diamond-weighing (carat weights) balance scale.Reviewed by: Bill Burchell from South Bend, IN on (2/25/2012)
Questions and Answers
A: Hey there Robert,
No this weight set does not come with a certificate of calibration.
A: Hey there mb,
Yes that is correct. You have to take into account the tolerances of the weights themselves, and the tolerances of the scale being used. That doesn't mean the added weight value WILL be off by that much, but it helps to know just how far off the weight value COULD be.
A: Hey there Frazier,
The largest weights are, of course, the 50 gram and the 100 gram versions. The 50 gram weight is approximately 1.15 inches tall and 0.65 inches wide. The 100 gram weight is 1.5 inches tall and 0.8 inches wide.
A: Hey there Bob,
The weights within the weight set are all M2 class. That class of weight will get the job done, however I would recommend using a higher class, more precise weight to calibrate the GemPro 250 since it's so sensitive and precise.
Rule of Thumb: The tolerance for the calibration weight you chose should have one more decimal place than the resolution for your scale. In this example, I would recommend the ASTM Class 3 Calibration weight which has a tolerance of plus or minus 0.0006 grams. The resolution of the GemPro 250 is 0.001 grams.