Choosing a lab balance starts with a simple question: do you need capacity for larger samples, or resolution for very small changes in mass? These two scales answer that question from opposite ends of the lab bench.
Quick verdict
If your workflow involves routine weighing of larger samples and you want the lower price, the used Mettler Toledo PM4600 is a practical pick at USD 185.00. If your work depends on analytical precision, the new Uimoso EA224 with 0.0001 g readability is worth the USD 254.14 price. A USD 69.14 gap separates the two, with the Mettler as the more affordable entry point.
At a glance
| Consideration | Mettler Toledo PM4600 | Uimoso EA224 |
|---|---|---|
| Price | USD 185.00 | USD 254.14 |
| Condition | Used | New |
| Capacity | 4100 g | 220 g |
| Readability | 0.01 g | 0.0001 g |
| Balance type | Top-loading | Analytical with draft shield |
| Price bar |
Where each product wins
The Mettler Toledo PM4600 wins for capacity. It can take larger vessels and heavier loads, which makes it the practical workhorse for general lab weighing.
The Uimoso EA224 wins for analytical precision and new condition. It reads to four decimal places, includes a draft shield for stable readings, and arrives as a new instrument with a calibration weight.
Product notes
Mettler Toledo PM4600 DeltaRange Lab Precision Balance Scale 4100g 0.01g
This Swiss-made top-loading balance is built around DeltaRange weighing, a stainless steel pan, integrated digital controls, and a data I/O interface. It is well suited to chemistry, biology, pharmaceutical, and industrial prep work where a reliable general-purpose lab scale matters more than four-decimal resolution. The main limitation is condition: it is a used instrument that came out of a university laboratory, so the housing may carry asset markings from that environment. Its readability is also coarser than an analytical balance, so it is not the right tool for micro-weighing. For a sturdy top loader with a larger workload, this balance makes sense.
Uimoso Analytical Lab Scale 220g Capacity 0.0001g Precision, 4 Measurement Units
This analytical scale is designed for small-sample precision. It uses a high-precision electromagnetic sensor, a protective glass draft shield, and a leveling bubble with adjustable foot pads to keep readings consistent. One-touch conversion switches among grams, ounces, carats, and milligrams, and a 200 g calibration weight is included for routine checks. The trade-off is capacity: at 220 g, it is meant for carefully measured small samples, not bulky beakers or large quantities. As a new instrument, it offers a clean starting point for analytical work, educational labs, or industrial settings where high resolution is the priority. If your samples fit within its range, this scale is built for that job.
Final choice by use case
Choose the Mettler Toledo PM4600 for general lab weighing where capacity matters more than four-decimal precision. Choose the Uimoso EA224 for analytical weighing where high resolution, a draft shield, and a new instrument are the priorities.
