---
product_id: 76152055
title: "AWS Gemini-20 Milligram Scale 20g x 0.001g–Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray–Tare, Cal, 6 Units (Gemini - 20 - Silver)"
brand: "american weigh scales"
price: "$111"
currency: NZD
in_stock: true
reviews_count: 7
category: "American Weigh Scales"
url: https://www.desertcart.nz/products/76152055-aws-gemini-20-milligram-scale-20g-x-0-001g-digital
store_origin: NZ
region: New Zealand
---

# 0.001g precision 20g max capacity draft shield protects sensor AWS Gemini-20 Milligram Scale 20g x 0.001g–Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray–Tare, Cal, 6 Units (Gemini - 20 - Silver)

**Brand:** american weigh scales
**Price:** $111
**Availability:** ✅ In Stock

## Summary

> ⚖️ Measure with milligram mastery—because precision is power.

## Quick Answers

- **What is this?** AWS Gemini-20 Milligram Scale 20g x 0.001g–Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray–Tare, Cal, 6 Units (Gemini - 20 - Silver) by american weigh scales
- **How much does it cost?** $111 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/76152055-aws-gemini-20-milligram-scale-20g-x-0-001g-digital)

## Best For

- american weigh scales enthusiasts

## Why This Product

- Trusted american weigh scales brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Unit Mastery:** Seamlessly switch between grams, carats, ounces & more
- • **Reliable & Durable:** Solid build with stainless steel pan and 10-year warranty
- • **Smart Draft Shield:** Flip-down cover doubles as a protective weighing tray
- • **Calibration Included:** Comes with reference weights for trusted, repeatable results
- • **Pocket-Sized Precision:** Fits effortlessly in your bag for on-the-go accuracy

## Overview

The AWS Gemini-20 is a compact, highly precise digital scale offering 20g capacity with 0.001g readability. Designed for professionals and enthusiasts weighing jewelry, powders, or coins, it features a protective draft shield that doubles as a tray, multi-unit conversion, and includes calibration weights and tweezers. Its durable build and intuitive operation make it a trusted tool for consistent, on-the-go precision, backed by a 10-year warranty.

## Description

American Weigh Scales is the leading manufacturer of high quality digital scales for fit any weighing application. The catalogue ranges from have floor scales to gram scales, pocket scales, kitchen scales, diet, bathroom scales, and many more. American Weigh Scales are state of the art at the most affordable prices. The American Weigh Scale Way is to understand shopper needs as a customer and client to help not only your wallet but to better your life. We make it our mission to exceed expectations in quality, service, design and function and keep consumers covered with a 10 year warranty.

Review: Almost a true milligram scale by laboratory testing - A great bargain for a cheap scale. It will perform reasonably well if used carefully. Do not expect it to compete in accuracy or durability against laboratory scales, such as those by Mettler or Sartorius selling for $5-10K. This is a nice little scale with a 4 by 4 inch footprint, about 1-1/2 inch tall, including the clear and colorless hinged draft shield. It fits into a neat magnetic-latch box. Batteries are included, two 10g reference weights, and cheap tweezers. The weighing pan is non-magnetic stainless steel. I have two of these scales to save trips to the weighing room. The first one has been in use for 6 months with no problems. The scale is not quite ready to use as delivered. First, the weighing pan has adhesive residue. It is that sticky gum that can only be removed effectively with citrus oil or a citrus oil cleaner, such as Goo Gone. Second, and as others have noted, the pan sits too low on the scale body, and often touches the body of the scale during weighing. This, of course, will not work. The remedy is to glue a 10 mm diameter by about 0.5 mm thick non-magnetic metal washer to the underside of the pan. See my photograph at top of the desertcart listing. Although this will reduce the weighing capacity of the scale by the weight of the washer, it is insignificant. The washer I used weighed about 530 mg. Third, the tweezers are crude. If you have any serious weighing to do, you really should buy some quality tweezers with about tip #2. Dumont (Swiss) and others make good stuff. Of course, a single quality tweezer can easily cost more than this scale. You can economize by buying their epoxy coated electronic tweezers. NOW, REAL TESTING. How accurate? How precise? To test, I used a set of laboratory reference weights, and an older Mettler Toledo AG204 DeltaRange scale in the lab. This is an expensive machine (about $5-10K depending on features) that measures to 0.1 mg. First off, on the Mettler, the two 10 g AWS calibration weights weighed in at 9.9991 g and 10.0001 g. Not bad; they were within a milligram. How about precision? Took a 1000 mg lab reference weight and weighed it on the AWS ten times, with a complete on/off/tare between each weighing and a closed draft hood, in mg: 999, 1003,1001, 1001, 1000, 1000, 998, 998, 1000, 998. Not too bad. Variation of 5 mg. Perhaps with careful placement, a solid surface, and a quiet environment, this variation could be reduced. How about accuracy? Here are side-by-side measurements of reference weights on the Mettler and the AWS. The scales were not tared each time. Just put the weight on the pan. The AWS was not calibrated first trial, calibrated on the second trial. Accuracy could surely be improved with taring, stable environment, etc. Calibration weights, in mg - Mettler - uncalibrated AWS (calibrated AWS) 5 - 5.0 - 5 (5) 10 - 10.0 - 10 (10) 20 - 20.0 - 19 (19) 50 - 50.0 - 48 (50) 100 - 100.0 - 100 (100) 200 - 200.1 - 200 (199) 500 - 499.8 - 501 (499) 1000 - 1000.3 - 1001 (999) 2000 - 2000.0 - 2001 (2000) 5000 - 5000.2 - 5005 (5000) 10000 - 9999.6 - 10011 (9999) 20000 - 20000.0 - 20022 (20002) Again, this is impressive. With calibration, the measurements were off by no more than a milligram or two. My recommendation is that if you need an inexpensive scale to measure within a few milligrams, and are willing to calibrate manually, buy this scale. If you must have absolute accuracy, set aside at least $10-20K on a laboratory scale, stand, and accessories, and dedicated weighing room. And if you need real accuracy, get an equal-arm balance. Update 30 May 2012 These two scales have been in use for over a year. Still perform well. They have been repeatedly tested. The measurements continue to be at least as accurate and precise as given above. Measurements have been published in peer-reviewed scientific journals. Depending on the project needs, and with reference weights and quality scales to verify performance, you can use this scale for scientific research. And remember, when you are weighing to the milligram and below, even the best scale will perform poorly with bad technique. This is not some yard-dog scale at a metal recycling plant. Have a clean, stable environment. Eliminate vibration and movement. Place the scale on a stable bench (if possible, granite is used in labs). You should be sitting, not standing. Arms off the bench. Eliminate air currents. No magnets. Keep magnetic steels away. Do not breathe directly on the scale. Use the draft shield. Gently place the object to be weighed on the pan. Don't drop it onto the pan. Don't use your fingers. Do not place the object directly on the pan. Use weighing paper or a disposable pan. After placing it on the pan and closing the draft shield, wait 10 seconds or so, for the scale to settle, before recording the weight. If you would like a fuller explanation of good weighing technique, Mettler has an excellent pdf user guide, "Weighing the right way," on their website. Update 4 Sept 2012 Some mention should be made of the pan. It is not the usual flat pan, but rather a dish with a spout. It gives the unfortunate impression that one can load a powder or some such in the dish and then pour it out. Not standard practice. For my use the pan is fine, but others should consider a substitute "pan" out of non-magnetic metal or even cardboard with a washer spacer below. The subject powder or object should be placed on weighing paper or weighing cup. Be sure that there is enough room to close the draft hood, because without the draft hood closed, all milligram and sub-milligram scales are unreliable. Update 9 Sept 2012 For those who have not worked in a lab, some mention should be made, after reading reviews on this scale, just what can be expected from any milligram or submilligram scale, whether it costs $25 or several thousand dollars. At this measurement level, subtle influences can greatly affect measurement. You cannot just throw a sample on the pan and hope for the best. Unfortunately, you need to know what follows. First off, these are scales, not balances. Balances compare a known, measured, mass against an unknown mass. They operate correctly anywhere there is gravity, no matter what the variation, even on the moon. In contrast, the AWS scale and even many expensive laboratory scales measure the force that gravity and centrifugal force of the earth's rotation exerts on a mass. Because gravitational force and centrifugal force vary slightly with the position of the scale on the earth, all these scales need to be calibrated after installation. Expensive scales do this automatically. With cheap scales, such as the AWS, you do this with a calibration weight. Unfortunately, the AWS calibration weight is too big, so you cannot close the draft shield when calibrating. Bad design. Use an inverted small beaker or such as a draft shield. Beyond that, there are several other significant sources of error affecting all scales: 1. Drafts. All drafts cause severe variation in recorded weight. Keep away from windows, doors, HVAC outlets, radiators, etc. Use the draft shield. 2. Vibration and movement. This will cause erratic readings and visible drift. Even absent outside movements, expensive scales take several seconds to settle down. 3. Temperature. Expensive scales measure and compensate for temperature, Cheap scales do not. If you have access to a set of milligram reference weights, you can check for this. 4. Humidity. Not too high, not too low. 5. Light. Light causes heat, which changes the measurement. Keep out of sunlight and bright artificial lights. 6. Leveling. Expensive scales have levels. Cheap scales do not. 7. Sample position on pan. Always place sample in the middle of the pan. 8. Electrostatic charge. A common and severe problem with low humidity and non-conductive weighing vessels, such as glass and plastic. Increase the humidity or change the weighting vessel. 9. Temperature gradients. Differences in pan, weighing vessel, and sample temperature causes severe problems because of convection air currents. 10. Magnetism. Obviously, any magnetic attraction between sample and something else will cause problems. Several materials commonly thought of as non-magnetic are somewhat magnetic. 11. Buoyancy. Because of the sample size, the AWS scale should not be affected much by this, unless one is weighing a large, low-density sample, which would be buoyed by air. 12. Oil and dirt. A common problem with beginners. Don't touch the pan or reference weights with fingers; use a tool, such as forceps or tweezers. Use weighing paper or some sort of weighing vessel on top of the pan. Generally, do not place a sample directly on the pan. If you make a mess, Windex is the usual cleaner for scales. So, for those reviews that claim without qualification that the AWS is accurate down to a milligram, it would take a lot of convincing. On the other hand, for those reviews that claim complete unreliability, assuming the item is not defective, it may just be one of the many inherent weighing problems. Still, a remarkable scale for the price.
Review: Perfect for Medications, Accurate, and Reliable for Everyday Precision Needs - I have been using the AWS Gemini-20 milligram scale for a little while now, and I can confidently say it has proven to be an extremely dependable and well-built precision scale. From the moment I took it out of the box, it was clear that this is a thoughtfully designed piece of equipment intended for accuracy, consistency, and ease of use. For anyone who needs reliable measurements down to the hundredth of a gram, this scale delivers exactly what it promises. One of the strongest points of the Gemini-20 is its accuracy. The readings are stable, repeatable, and quick to settle, which is something I value highly in a precision scale. When properly calibrated and used on a flat, stable surface, the measurements are consistent every single time. Taring is fast and intuitive, making it easy to zero out containers or weighing trays without frustration. This reliability inspires confidence, especially when precision truly matters. The overall build quality is excellent. The scale feels solid and durable, not flimsy or cheaply made. The protective lid doubles as a convenient weighing tray, which is a smart and practical design choice. The buttons have a good tactile feel and respond immediately, without requiring excessive pressure. Everything about the scale feels purposeful and well-engineered. Another thing I appreciate is how straightforward the user experience is. There is no learning curve. You turn it on, calibrate if needed, tare, and weigh. The scale does exactly what it is supposed to do without unnecessary features or distractions. Battery life has also been very good in my experience, with no noticeable drain even after extended use. My only minor complaint, and it truly is minor, has to do with the screen display. While the backlit screen is bright and easy to read in most conditions, the background color can sometimes contrast a bit with the digital numbers, depending on the lighting and viewing angle. It does not affect accuracy or functionality in any way, but a slightly different contrast choice would make the display even more visually clear. That said, it is something you notice briefly and then forget about once you start using the scale regularly. Overall, the AWS Gemini-20 is a perfectly functional, accurate, and dependable milligram scale that performs exactly as advertised. It offers excellent value, solid construction, and reliable precision that makes it suitable for a wide range of uses. Aside from a small display contrast preference, I have zero complaints. I would absolutely recommend this scale to anyone who needs consistent and trustworthy measurements and wants a product that simply works without fuss.

## Features

- WEIGHING ON-THE-GO: This scale is a MULTIFUNCTIONAL WEIGHING TOOL that can fit in your pocket; Weigh just about anything in grams, grains, ounces, carats, troy ounces, and penny weight; The lid serves as a weighing tray for all your gems, gold, coins, and even coffee too!
- Versatile Functionality: Allows you to switch between Grams ounces and more.
- The flip-down shield protects the delicate weighing surface
- DURABLE & COMPACT: This mini food scale is perfect for travel and can fit in your bag; Plus, it easily converts between ounces, grams, troy ounces, pennyweights, carats, and grains

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0012TDNAM |
| Batteries | 2 AA batteries required. (included) |
| Best Sellers Rank | #15,859 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #103 in Digital Kitchen Scales |
| Brand | AMERICAN WEIGH SCALES |
| Color | Silver |
| Date First Available | January 19, 2008 |
| Display Type | LCD |
| Form Factor | Modern |
| Global Trade Identification Number | 00814859010277 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.2 ounces |
| Item model number | GEMINI-20 |
| Manufacturer | American Weigh Scales |
| Material | Plastic |
| Product Dimensions | 4.94 x 6.5 x 1.62 inches |
| Recommended Uses For Product | Coins, Food, Jewellery, Medicines |
| Special Feature | Precision weight sensors |
| UPC | 814859010277 |
| Unit Count | 1.0 Count |
| Weigh Scale Type | Counter Scale |
| Weight Limit | 20 Grams |

## Product Details

- **Brand:** AMERICAN WEIGH SCALES
- **Color:** Silver
- **Display Type:** LCD
- **Recommended Uses For Product:** Coins, Food, Jewellery, Medicines
- **Special Feature:** Precision weight sensors

## Images

![AWS Gemini-20 Milligram Scale 20g x 0.001g–Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray–Tare, Cal, 6 Units (Gemini - 20 - Silver) - Image 1](https://m.media-amazon.com/images/I/71R+ub+dziL.jpg)
![AWS Gemini-20 Milligram Scale 20g x 0.001g–Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray–Tare, Cal, 6 Units (Gemini - 20 - Silver) - Image 2](https://m.media-amazon.com/images/I/41xzKXY-4JL.jpg)
![AWS Gemini-20 Milligram Scale 20g x 0.001g–Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray–Tare, Cal, 6 Units (Gemini - 20 - Silver) - Image 3](https://m.media-amazon.com/images/I/81X0AzOrbZL.jpg)
![AWS Gemini-20 Milligram Scale 20g x 0.001g–Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray–Tare, Cal, 6 Units (Gemini - 20 - Silver) - Image 4](https://m.media-amazon.com/images/I/71S8nZqtMGL.jpg)
![AWS Gemini-20 Milligram Scale 20g x 0.001g–Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray–Tare, Cal, 6 Units (Gemini - 20 - Silver) - Image 5](https://m.media-amazon.com/images/I/71CwxEfZO7L.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: Has anybody had any issues with this scale not weighting until it hits 5 milligrams and the numbers jumping around?**
A: I've had problems as well. When turned on and left to warm up it usually sets to "0". When I add reactants to the scale it doesn't move, then suddenly jumps to .006, then .007, then back to 0. It stays at 0 even when I add a little more. When put on the high priced scale it reads over .010, so this isn't good for anything small, certainly not a ",001g" scale. The other suggestion that one would use the 10g test weight, with the pan and then add the reactant doesn't work either (I didn't expect it to). This doesn't work as told.

**Q: Does this scale have an option to measure in carats?**
A: Yes, but although the scale reads to milligrams, it's accuracy as listed in the manual is only .020g, or a tenth of a carat either way.

**Q: The material I weighed seemed to stick to the weigh pan. Any suggestions for this and also keeping the scale on long enough seems to be  a problem**
A: Place a sheet of paper/wax paper on the little pan before use. I encountered this problem when weighing out my nutritional supplement powders. Balance a small square pane of glass or acrylic panel on top of the pan provided and place your sample on top. Anything that sticks can be scraped off and recovered using a razor blade.

**Q: where can i get replacement tray & tweezers?**
A: You can contact American Weigh directly to purchase spare parts.  Check their website at http://www.awscales.com, e-mail them at mail@awscales.com, or call their customer support number at (770) 542-0230.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Almost a true milligram scale by laboratory testing
*by G***O on September 28, 2011*

A great bargain for a cheap scale. It will perform reasonably well if used carefully. Do not expect it to compete in accuracy or durability against laboratory scales, such as those by Mettler or Sartorius selling for $5-10K. This is a nice little scale with a 4 by 4 inch footprint, about 1-1/2 inch tall, including the clear and colorless hinged draft shield. It fits into a neat magnetic-latch box. Batteries are included, two 10g reference weights, and cheap tweezers. The weighing pan is non-magnetic stainless steel. I have two of these scales to save trips to the weighing room. The first one has been in use for 6 months with no problems. The scale is not quite ready to use as delivered. First, the weighing pan has adhesive residue. It is that sticky gum that can only be removed effectively with citrus oil or a citrus oil cleaner, such as Goo Gone. Second, and as others have noted, the pan sits too low on the scale body, and often touches the body of the scale during weighing. This, of course, will not work. The remedy is to glue a 10 mm diameter by about 0.5 mm thick non-magnetic metal washer to the underside of the pan. See my photograph at top of the Amazon listing. Although this will reduce the weighing capacity of the scale by the weight of the washer, it is insignificant. The washer I used weighed about 530 mg. Third, the tweezers are crude. If you have any serious weighing to do, you really should buy some quality tweezers with about tip #2. Dumont (Swiss) and others make good stuff. Of course, a single quality tweezer can easily cost more than this scale. You can economize by buying their epoxy coated electronic tweezers. NOW, REAL TESTING. How accurate? How precise? To test, I used a set of laboratory reference weights, and an older Mettler Toledo AG204 DeltaRange scale in the lab. This is an expensive machine (about $5-10K depending on features) that measures to 0.1 mg. First off, on the Mettler, the two 10 g AWS calibration weights weighed in at 9.9991 g and 10.0001 g. Not bad; they were within a milligram. How about precision? Took a 1000 mg lab reference weight and weighed it on the AWS ten times, with a complete on/off/tare between each weighing and a closed draft hood, in mg: 999, 1003,1001, 1001, 1000, 1000, 998, 998, 1000, 998. Not too bad. Variation of 5 mg. Perhaps with careful placement, a solid surface, and a quiet environment, this variation could be reduced. How about accuracy? Here are side-by-side measurements of reference weights on the Mettler and the AWS. The scales were not tared each time. Just put the weight on the pan. The AWS was not calibrated first trial, calibrated on the second trial. Accuracy could surely be improved with taring, stable environment, etc. Calibration weights, in mg - Mettler - uncalibrated AWS (calibrated AWS) 5 - 5.0 - 5 (5) 10 - 10.0 - 10 (10) 20 - 20.0 - 19 (19) 50 - 50.0 - 48 (50) 100 - 100.0 - 100 (100) 200 - 200.1 - 200 (199) 500 - 499.8 - 501 (499) 1000 - 1000.3 - 1001 (999) 2000 - 2000.0 - 2001 (2000) 5000 - 5000.2 - 5005 (5000) 10000 - 9999.6 - 10011 (9999) 20000 - 20000.0 - 20022 (20002) Again, this is impressive. With calibration, the measurements were off by no more than a milligram or two. My recommendation is that if you need an inexpensive scale to measure within a few milligrams, and are willing to calibrate manually, buy this scale. If you must have absolute accuracy, set aside at least $10-20K on a laboratory scale, stand, and accessories, and dedicated weighing room. And if you need real accuracy, get an equal-arm balance. Update 30 May 2012 These two scales have been in use for over a year. Still perform well. They have been repeatedly tested. The measurements continue to be at least as accurate and precise as given above. Measurements have been published in peer-reviewed scientific journals. Depending on the project needs, and with reference weights and quality scales to verify performance, you can use this scale for scientific research. And remember, when you are weighing to the milligram and below, even the best scale will perform poorly with bad technique. This is not some yard-dog scale at a metal recycling plant. Have a clean, stable environment. Eliminate vibration and movement. Place the scale on a stable bench (if possible, granite is used in labs). You should be sitting, not standing. Arms off the bench. Eliminate air currents. No magnets. Keep magnetic steels away. Do not breathe directly on the scale. Use the draft shield. Gently place the object to be weighed on the pan. Don't drop it onto the pan. Don't use your fingers. Do not place the object directly on the pan. Use weighing paper or a disposable pan. After placing it on the pan and closing the draft shield, wait 10 seconds or so, for the scale to settle, before recording the weight. If you would like a fuller explanation of good weighing technique, Mettler has an excellent pdf user guide, "Weighing the right way," on their website. Update 4 Sept 2012 Some mention should be made of the pan. It is not the usual flat pan, but rather a dish with a spout. It gives the unfortunate impression that one can load a powder or some such in the dish and then pour it out. Not standard practice. For my use the pan is fine, but others should consider a substitute "pan" out of non-magnetic metal or even cardboard with a washer spacer below. The subject powder or object should be placed on weighing paper or weighing cup. Be sure that there is enough room to close the draft hood, because without the draft hood closed, all milligram and sub-milligram scales are unreliable. Update 9 Sept 2012 For those who have not worked in a lab, some mention should be made, after reading reviews on this scale, just what can be expected from any milligram or submilligram scale, whether it costs $25 or several thousand dollars. At this measurement level, subtle influences can greatly affect measurement. You cannot just throw a sample on the pan and hope for the best. Unfortunately, you need to know what follows. First off, these are scales, not balances. Balances compare a known, measured, mass against an unknown mass. They operate correctly anywhere there is gravity, no matter what the variation, even on the moon. In contrast, the AWS scale and even many expensive laboratory scales measure the force that gravity and centrifugal force of the earth's rotation exerts on a mass. Because gravitational force and centrifugal force vary slightly with the position of the scale on the earth, all these scales need to be calibrated after installation. Expensive scales do this automatically. With cheap scales, such as the AWS, you do this with a calibration weight. Unfortunately, the AWS calibration weight is too big, so you cannot close the draft shield when calibrating. Bad design. Use an inverted small beaker or such as a draft shield. Beyond that, there are several other significant sources of error affecting all scales: 1. Drafts. All drafts cause severe variation in recorded weight. Keep away from windows, doors, HVAC outlets, radiators, etc. Use the draft shield. 2. Vibration and movement. This will cause erratic readings and visible drift. Even absent outside movements, expensive scales take several seconds to settle down. 3. Temperature. Expensive scales measure and compensate for temperature, Cheap scales do not. If you have access to a set of milligram reference weights, you can check for this. 4. Humidity. Not too high, not too low. 5. Light. Light causes heat, which changes the measurement. Keep out of sunlight and bright artificial lights. 6. Leveling. Expensive scales have levels. Cheap scales do not. 7. Sample position on pan. Always place sample in the middle of the pan. 8. Electrostatic charge. A common and severe problem with low humidity and non-conductive weighing vessels, such as glass and plastic. Increase the humidity or change the weighting vessel. 9. Temperature gradients. Differences in pan, weighing vessel, and sample temperature causes severe problems because of convection air currents. 10. Magnetism. Obviously, any magnetic attraction between sample and something else will cause problems. Several materials commonly thought of as non-magnetic are somewhat magnetic. 11. Buoyancy. Because of the sample size, the AWS scale should not be affected much by this, unless one is weighing a large, low-density sample, which would be buoyed by air. 12. Oil and dirt. A common problem with beginners. Don't touch the pan or reference weights with fingers; use a tool, such as forceps or tweezers. Use weighing paper or some sort of weighing vessel on top of the pan. Generally, do not place a sample directly on the pan. If you make a mess, Windex is the usual cleaner for scales. So, for those reviews that claim without qualification that the AWS is accurate down to a milligram, it would take a lot of convincing. On the other hand, for those reviews that claim complete unreliability, assuming the item is not defective, it may just be one of the many inherent weighing problems. Still, a remarkable scale for the price.

### ⭐⭐⭐⭐⭐ Perfect for Medications, Accurate, and Reliable for Everyday Precision Needs
*by R***Z on January 14, 2026*

I have been using the AWS Gemini-20 milligram scale for a little while now, and I can confidently say it has proven to be an extremely dependable and well-built precision scale. From the moment I took it out of the box, it was clear that this is a thoughtfully designed piece of equipment intended for accuracy, consistency, and ease of use. For anyone who needs reliable measurements down to the hundredth of a gram, this scale delivers exactly what it promises. One of the strongest points of the Gemini-20 is its accuracy. The readings are stable, repeatable, and quick to settle, which is something I value highly in a precision scale. When properly calibrated and used on a flat, stable surface, the measurements are consistent every single time. Taring is fast and intuitive, making it easy to zero out containers or weighing trays without frustration. This reliability inspires confidence, especially when precision truly matters. The overall build quality is excellent. The scale feels solid and durable, not flimsy or cheaply made. The protective lid doubles as a convenient weighing tray, which is a smart and practical design choice. The buttons have a good tactile feel and respond immediately, without requiring excessive pressure. Everything about the scale feels purposeful and well-engineered. Another thing I appreciate is how straightforward the user experience is. There is no learning curve. You turn it on, calibrate if needed, tare, and weigh. The scale does exactly what it is supposed to do without unnecessary features or distractions. Battery life has also been very good in my experience, with no noticeable drain even after extended use. My only minor complaint, and it truly is minor, has to do with the screen display. While the backlit screen is bright and easy to read in most conditions, the background color can sometimes contrast a bit with the digital numbers, depending on the lighting and viewing angle. It does not affect accuracy or functionality in any way, but a slightly different contrast choice would make the display even more visually clear. That said, it is something you notice briefly and then forget about once you start using the scale regularly. Overall, the AWS Gemini-20 is a perfectly functional, accurate, and dependable milligram scale that performs exactly as advertised. It offers excellent value, solid construction, and reliable precision that makes it suitable for a wide range of uses. Aside from a small display contrast preference, I have zero complaints. I would absolutely recommend this scale to anyone who needs consistent and trustworthy measurements and wants a product that simply works without fuss.

### ⭐⭐⭐⭐⭐ Review
*by H***Z on June 5, 2019*

Es justo lo que buscaba para pesar gemas pequeñas y conocer cuántos kilates pesan hasta 3 decimales de precisión. Anteriormente compré otras básculas de precios mucho más económicos pero nunca me sirvieron, aprendí mi lección de que es mejor invertir en algo bueno. No se descalibra seguido, pero es recomendable siempre corroborar con una de las pesas de 10 gramos que trae antes de usarla. Trae unas pinzas y un platito para usarlo en modo Tare, en fin, muy recomendable para quienes buscan calidad y excelente precisión.

## Frequently Bought Together

- AWS Gemini-20 Milligram Scale 20g x 0.001g – Digital Jewelry/Lab Scale for Powder, Gold, Gems – Includes Calibration Weights, Tweezers & Tray – Tare, Cal, 6 Units, Pocket Size Mg Scale (Silver)
- Weigh Boats Medium (100ml, 125 Pack) Disposable Plastic Trays for Scale, Anti-Static Square Tray Weighing Dishes, Polystyrene Lab Dish for Powder Weight, Mixing Epoxy, Food Sample Container, Pour Boat
- 15Pcs Stainless Steel Lab Spatula Micro Scoop Reagent Laboratory Mixing Spatula 22cm Long Sampling Spoon

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/76152055-aws-gemini-20-milligram-scale-20g-x-0-001g-digital](https://www.desertcart.nz/products/76152055-aws-gemini-20-milligram-scale-20g-x-0-001g-digital)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-20*