Calibration Weight for AWS Digital Scale, Carbon Steel, Chrome Finish, 50G (50WGT)

I checked the weight to be exactly 100 grams. Calibration weight worked exactly as it was designed to do.

Sizes: 2 kg (2 ea.), 1 kg, 500 g, 200 g (2 ea.), purchased 2019-07–2024-01 In combination with a set of smaller weights, I can check any value between 10 mg and 6 kg. I’ve had occasional problems with packaged goods being less than claimed, and mentioning a calbration check usually puts the kibosh on any questions about my scales. These weights are OIML Class M2 (±0.016%), which is adequate for my purposes. I’m not running a metrology lab, but simply want to ensure that my scales are reasonably accurate. I have no way of verifying the accuracy, but indications from four different scales have been in very close agreement with the stated values, which would seem to speak well for both the weights and the scales. The finish is good, and is slightly nicer on the two weights I purchased most recently. As several others have noted, it’s easy to get a few minor dings and scratches; the weights should be protected with something better than a thin plastic zip bag. One major caveat with the larger weights: Amazon cannot seem to grasp that one cannot put a small, heavy object in a much larger box without adequate fill and expect things to end well. I’ve had to place six orders to get two usable 2 kg weights. The first two boxes arrived without any contents (the weights apparently tore through the boxes in transit); the next arrived, but badly dinged. And with two recent orders, I learned that “a problem occurred with your shipment and we no longer expect it to be delivered”; I think I can guess what happened here. It may be unreasonable to expect a case for a Class M2 weight, but something must be done to afford protection in shipment. Bubble wrap or its equivalent, ecologically objectionable though it may be, is probably needed to prevent the weight from getting dings. And something sturdier than inflatable cushions or a strip or two of flimsy packing paper is needed to keep the weights from shifting and impacting (or rupturing) the boxes. Any major carrier’s website will say as much, but this ought to be self-evident. Time is money, but it seems to me that the four 2 kg weights that were damaged or never arrived would have more than paid for slightly better packing.

American Weigh (ironically made in China) makes a wide variety of scales that can be seen at their web site. I have had very good success with the two "pocket" units I have purchased (2000gm-limit SC-2kg & 500gm-limit SM-501). Recommend you download the PDF manual for any scale of your interest and read it before purchasing. The manuals will tell you what weights are needed to calibrate each scale. These scales work on an electronic strain guage principle, and as such are very accurate and repeatable if used gently and not abused (set items gently onto them, do not drop - and do not exceed scale weight limit). They have some nice additional features as well. The two units above require 2xAAA batteries each (I use Energizer Lithium AAA). The SM-501 is 20x more precise and better for weighing smaller items or high-precision work (powders, jewels, small coins, etc.) and has 6 weight types vs. 4; I would recommend it if not going over 500gm (~ 17 oz. or 1 pound). Both scales arrived fairly well calibrated, but I used the proper calibration weights to set them precisely and check them before each use - this is particularly important with the high-precision SM-501. Once calibrated, I have not yet needed to recalibrate again. These calibration weights are very nice, accurate, and work well. If you are a precision person, you can purchase one weight and use it to make your own temporary weights. The SC-2kg scale requires a 500gm and 2000gm weight to calibrate it. I bought this 500gm weight and used it to make (precisely match) 3 more 500gm weights with stuff around the house, then stacked them all four together to create the 2000gm calibration weight. You can add tiny pices of paper or sand or drops of water to get a precise match. (2 kilograms = 2kg = 2000 grams = 2000gm = 4 x 500gm)

I actually special ordered the Chin Na 6 dvd set by Master Wing Lam and found out on the "training methods and tools dvd" that iron pen arts were also included on Chin Na training for improving the strength in the fingers to be more affective on acupoints on a human body. All ya need is a dot co and saw off the top and smooth out with a scotch brite pad and the opposite side have a small drill bit and put in a hole and insert a artist brush and when the master's in the Shaolin Temple were not training in a way they still would be in free time with the iron pen because they would only grip it just with 3 fingers tips for the index finger, middle finger and thumb and would draw out hieroglyphs on scrolls every day on there free time to improve the strength in the fingers and you can also use it free style without putting in an artist brush in the bottom and just visualize drawing out numbers, letters, sentences or hieroglyphs. But if you want to customize it then as I said before you will need a dot co and saw off the top and smooth the surface with a scotch brite pad on a dot co 90 degree drill and take a 30 drill pit and insert a hole for an artist brush and improve the grip in your fingers over time with the iron pen arts!!! To see actual instruction you can special order the dvd by Master Wing Lam off his dvd called "Training methods and tools" for Chin Na!! According to legend a master practiced the iron pen arts for years and when a friend of his came over to see him he did not realize the strength in his finger tips and accidently ripped off his long sleeve shirt by practicing Chin Na methods. This is just one art for Chin Na training there is other tools as well off Master Wing Lam's dvd on Chin Na but the most affective way to improve the grip for Chin Na is the Chin Na stones and Masters will work up to 70 to 100 pounds lifts just with there 3 fingers tips on a pinch lift!!! :) I also recommend the 2000gm calibration weight scale for the iron pen arts cause it's a little heavier and you get more fatigued in your fingers when using it for the "Iron Pen Arts"!! :)

Product came with a dent mark at the bottom of the product.

Good precision for what i need! Good quality, fast shipping.

A+ for customer service!

Trade-grade calibration weights can run into the hundreds of dollars, so this reasonably-priced model perfectly fitted my needs for home kitchen scale calibration.

Purchased this calibration weight to check readings on a small digital scale. For my purposes, this works very well to confirm scale accuracy.