USSolid 1mg Review: A Lab Scale with RS232 and USB Connectivity
The USSolid 1mg Analytical Balance offers 0.001g readability and dual LCD screens for precision weighing in laboratory and industrial settings.
By Elvis Dicki
Updated October 20, 2026
For professionals in fields demanding extreme precision—from pharmaceutical formulation and chemical analysis to jewelry crafting and food processing—the choice of an analytical balance is critical. The USSolid 1mg Analytical Balance High Precision enters this space as a digital lab scale offering 1mg readability and a 300g capacity, designed to cater to a variety of unit conversion needs and data recording workflows. This in-depth review examines its specifications, features, and potential applications based solely on the manufacturer’s data, providing a clear bottom line for those considering this instrument for their precision weighing tasks.
This is a standalone review of the USSolid 1mg Analytical Balance (model USS-DBS58-3). We have not physically tested this product; our analysis is based on the manufacturer’s specifications, listed features, and the provided product details. The balance is positioned for laboratory, industrial, and jewelry applications where high precision and data connectivity are valued.
Prime U.S. Solid USS-DBS58 300g 0.001g Analytical
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USSolid 1mg at a Glance
| Specification | Detail |
|---|---|
| Maximum Capacity | 300 g |
| Readability | 0.001 g (1 mg) |
| Repeatability | ± 0.002 g |
| Linearity | ± 0.003 g |
| Weighing Pan Size | Φ 90 mm (Stainless Steel) |
| Display | Dual Backlit LCD Screens (Front & Rear) |
| Connectivity | RS-232 & USB Interface |
| Power Options | AC 100-240V or 4 x 1.5V Batteries (not included) |
| Calibration | External, using included 200 g weight |
| Supported Units | 19 units (g, kg, ct, oz, %, etc.) |
Design and Build
The USSolid 1mg Analytical Balance features a form factor described as “mini,” with a color scheme of silver and transparent elements. The core weighing platform is a 90mm diameter stainless steel pan, which provides a durable and easy-to-clean surface for samples. A key design element is the integrated glass windshield with three sliding doors. This shield is crucial for an analytical balance, as it protects the sensitive weighing area from air drafts and environmental disturbances that could affect the high-precision measurement of small masses.
The dual LCD screen design is a notable ergonomic feature. With backlit displays on both the front and rear of the unit, users can easily read measurements without needing to reposition themselves or the balance, facilitating workflows in shared or crowded lab spaces. The overall construction utilizes glass and stainless steel, materials chosen for their stability and resistance to corrosion in laboratory environments. The physical interface for controls and ports is positioned for accessibility, supporting the device’s role as a bench-top instrument.
Performance and Features
The performance of an analytical balance is defined by its precision, stability, and functional versatility. Based on the manufacturer’s specifications, the USSolid 1mg is built for tasks requiring fine measurement.
Precision and Capacity
The balance offers a maximum capacity of 300 grams with a readability of 0.001 grams (1 milligram). The manufacturer lists a repeatability of ±0.002 grams and a linearity of ±0.003 grams. The stabilization time is specified as ≤3 seconds, which is important for efficient workflow. It’s important to note that the minimum measure weight is listed as 0.02 g (20 mg). The balance operates within a working temperature range of 41°F to 95°F and uses a strain gauge weighing sensor.
Connectivity and Data Management
This model is equipped with both RS-232 and USB interfaces, allowing for direct connection to a computer or printer. This dual-interface design is highlighted as eliminating port-mismatch worries. Three printing modes are supported for data tracking and record-keeping, enabling users to log measurements directly. This feature is essential for laboratory compliance and quality control where audit trails are necessary.
Key Functional Features
The balance includes several standard and advanced functions for a precision scale:
- 19 Measurement Units: It supports a wide array of units including g, kg, ct, T, TAR, dr, PKT, GN, TMR, gsm, tlJ, mo, dwt, oz, lb, tlT, ozt, tlH, and %. This makes it adaptable for jewelry (carats, pennyweights), laboratories (grams, milligrams), and specific industrial tests like GSM paper testing.
- Piece Counting Function: By entering a counting mode and using preset counts, the balance can expedite repetitive tasks of counting small, identical items.
- Check-weighing & Percentage Function: These modes allow for comparing a sample weight against a target or calculating the percentage of a component relative to a reference weight.
- Tare Function & Overload Protection: Standard tare functionality is included, along with protection against overloading the sensor.
- Dual Power Supply: The balance can run on standard AC power (100-240V) or on four 1.5V batteries (which are not included), offering portability for use in locations without immediate AC access.
Setup, Support and Ownership
Setup involves placing the balance on a stable, level surface, a prerequisite for any precision weighing instrument. A critical step is the external calibration process, which must be performed using the 200-gram calibration weight included with the unit to ensure accuracy. The manufacturer does not specify if calibration weights for other points are available or required. The dual power option provides flexibility, but users must source their own batteries if mobile operation is desired.
Ownership considerations include the availability of support and potential for firmware or software updates, details which are not provided in the manufacturer’s data. The product is listed as being in stock. The balance is recommended for use in laboratories and for jewelry, precious metals, and gemstones, indicating its intended environments. As with any precision instrument, proper care of the glass windshield and stainless steel pan is necessary to maintain performance.
What Owners Say
At the time of this analysis, there are no buyer reviews or ratings available for the USSolid 1mg Analytical Balance (ASIN: B09WZV4RQ3). Therefore, there is no user-generated feedback regarding real-world accuracy, long-term reliability, ease of use of the software interface, or quality of customer support. Prospective buyers must rely solely on the manufacturer’s specifications and claims when evaluating this product.
Pros and Cons
Pros
- High precision with 0.001g readability.
- Dual LCD screens for convenient viewing from multiple angles.
- Extensive support for 19 measurement units enhances versatility.
- RS-232 and USB connectivity for easy data transfer and printing.
- Glass draft shield with three doors protects measurements.
- Dual power option (AC or battery) increases placement flexibility.
- Includes piece counting and check-weighing functions.
Cons
- Requires external calibration using the included weight.
- No customer reviews exist to verify real-world performance and durability.
- Batteries for portable operation are not included.
- Specifics on warranty, software support, and update policies are not listed.
Who Should Buy It (and Who Should Skip It)
The USSolid 1mg Analytical Balance is a candidate for laboratories, pharmacies, educational institutions, or jewelry workshops that need a balance with 1mg readability and robust data connectivity (RS-232/USB) for record-keeping. Its multiple unit conversions and piece counting function make it suitable for varied tasks. It may also suit small-scale food processing or quality control where precise measurements are required.
Users who require traceable certification (e.g., NIST) for legal-for-trade or highly regulated pharmaceutical work should seek confirmation from the manufacturer, as this is not specified. Those who need internal calibration or a balance with a proven track record of user satisfaction may want to consider alternatives with established reviews. Applications demanding the absolute highest tier of analytical accuracy might also require a balance with different specifications.
Final Verdict
Based on its specifications, the USSolid 1mg Analytical Balance presents a feature-rich option for precision weighing. The combination of 1mg readability, dual displays, 19-unit versatility, and both RS-232 and USB ports creates a functional package aimed at improving workflow efficiency in lab and industrial settings. The inclusion of a glass draft shield and external calibration weight addresses the fundamental needs for stable and accurate measurements.
The primary limitation for potential buyers is the complete absence of user reviews, leaving questions about real-world accuracy consistency, build quality over time, and the usability of its software interfaces unanswered. As an analyst reviewing the specs, the product appears well-equipped on paper for its stated purposes in jewelry, laboratory, and industrial testing. However, due diligence is advised, and buyers should confirm any specific regulatory or certification requirements directly with the manufacturer or supplier before purchase. For more expert analysis on specialized equipment, explore our other reviews or our coverage of tech gear.
FAQs
Does the USSolid 1mg Balance come calibrated?
No, the balance requires external calibration by the user. The process must be performed using the 200-gram calibration weight included with the unit. It is a standard practice for balances of this type to be calibrated on-site to ensure accuracy in the specific environment where they will be used.
Can I use this balance without a computer?
Yes, absolutely. The balance functions fully as a standalone instrument. The RS-232 and USB ports are optional interfaces for when you need to send weight data to a computer for recording or to a printer for generating hard copies. All weighing, unit conversion, counting, and check-weighing operations are performed on the device itself.
What is the difference between readability and accuracy?
Readability (0.001g) is the smallest division the display can show. Accuracy refers to how close the displayed weight is to the true weight. The manufacturer lists separate specifications: an accuracy of 0.001g, a repeatability of ±0.002g, and a linearity of ±0.003g. These figures together give a more complete picture of the balance’s performance.
Is this balance suitable for weighing very small samples below 20mg?
According to the manufacturer’s data, the minimum measure weight is 0.02 g (20 mg). This suggests that measurements of samples weighing less than 20mg may not be reliable or within the stated accuracy specifications. For consistently weighing samples smaller than 20mg, a balance with a lower minimum weight specification would be required.
About the author
Elvis Dicki writes reviews and buying guides for CyberSecLabs.