U.S. Solid Density Balance - 310 g x 0.005 g with Density Kit for Solid, Liquid and Golid, 0.005 g/cm

  • $540.54 $568.99 Save 5%
  • Coupon ACTIVE - Last checked 01/26/2026 07:40 PM PST
  • Expires: 06/30/2026 at Midnight or while supplies last.
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Precision You Can Trust: My Review of the U.S. Solid Density Balance

As an Amazon Influencer, I get to test a lot of specialized gear, but few things are as satisfying to use as a high-precision lab instrument. Recently, I’ve been putting the U.S. Solid Density Balance (310 g x 0.005 g) through its paces, and if you are a jeweler, a researcher, or a hobbyist working with precious metals, you’re going to want to see this.

What’s in the Box?

One of the biggest headaches when buying a density scale is having to source the immersion kits separately. U.S. Solid solves that by including a comprehensive Density Kit right in the box. It’s designed to measure the density of solids, liquids, and specifically gold, with a resolution of 0.005 g/cm³.

The build quality is impressive. It feels like a piece of professional laboratory equipment rather than a flimsy tabletop scale. The windshield/draft shield is sturdy, which is essential because, at a 0.005g precision level, even a slight breeze can throw off your readings.

Performance and Accuracy

The 310g capacity is the "sweet spot" for most users. It’s large enough to handle most jewelry pieces and mineral samples, yet sensitive enough to catch minute differences in weight. Here are a few highlights from my testing:

  • Gold Testing: Using the Archimedes principle, this scale makes it incredibly easy to verify the purity of gold. By weighing the item in the air and then in water, the balance calculates the density automatically. No more guessing or messy acid tests for initial screenings.
  • Liquid Measurements: The kit includes the necessary weights and thermometers to calibrate for liquid density, which is a game-changer for DIY chemists or those in the essential oil industry.
  • Stability: The response time is quick. You aren't waiting forever for the numbers to stop jumping around, which is a testament to the internal load cell quality.

The Learning Curve

If you’ve never used a density balance before, there is a slight learning curve to the setup. However, the instructions provided by U.S. Solid are clear, and once you have the platform and the hanging basket calibrated, it becomes second nature. I highly recommend taking the time to level the scale using the adjustable feet and the built-in bubble level before you start.

Pros and Cons

Pros:
  • All-in-one kit (no extra purchases needed).
  • High precision (0.005g) at a competitive price point.
  • Versatile enough for solids, liquids, and precious metals.
  • Clear, backlit LCD display.
Cons:
  • Requires a stable, vibration-free surface for maximum accuracy.
  • The setup takes a few minutes longer than a standard digital scale.

Final Verdict

Whether you are trying to ensure the quality of your gold inventory or performing scientific density experiments, the U.S. Solid Density Balance is a workhorse. It bridges the gap between affordable consumer scales and high-end industrial equipment. It has earned a permanent spot on my workbench!

Looking to upgrade your lab? You can find this balance and my other top-rated tools on my Amazon Storefront!


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