QP Calibration Weights 1000g, 8PCS OIML Class M1 High Precision Scale Calibration Weight Set, 10g 20g 50g 100g 200g 500g Calibration Weight with Tweezers for Digital Scale, Gram Scale, Lab Scale

I bought these, like many others, to check the accuracy of my home scales. I checked them on our kitchen scale and if they were the exact weight as shown on them, then the scale said they were bang on. That's assuming that my kitchen scale is reading correctly. Either way they were close enough for me to use. I'm now using these weights to calibrate a 3D printed filament scale made from a 1kg beam load cell, an Arduino Nano board and an OLED display. Nice to get a good idea as to how much filament is remaining on the spool before committing to a print. Good value for the money.

Gostei muito do produto

Weights appear as advertised and were ideal for my calibration application. They arrived promptly in a durable container.

10g = 10g 20g = 20g 50g = 49.8g #1.100g = 100g #2. 100g = 98.9g 200g = 200g 500g = 499.3 G These simply cannot be used for accurate weighing or calibration purposes. Return initiated.

A beautiful set of weights... at an amazing price. The little tweezers are a waste but the weights all have knobs on the tops so the tweezers aren't necessary anyway. Great quality.