When you're shopping for a used lab balance, the first fork in the road is usually capacity versus readability. You can spend your budget on a unit that resolves a tenth of a milligram, or on one that lets you weigh up to four kilograms. The Acculab ALC-210.4 and the Mettler Toledo PM4600 DeltaRange sit on opposite sides of that trade-off. One offers analytical precision for small samples; the other offers top-loading capacity for heavier work. Here's how to decide which one matches your weighing routine.
Quick Verdict
If your work depends on analytical precision, the Acculab ALC-210.4's fine readability makes it the right choice. If you need a top-loader that can handle a wide range of masses, the Mettler Toledo PM4600 DeltaRange is the better fit. The table below summarizes the key specs and prices.
At a Glance
Here is the side-by-side comparison of the two used balances.
| Model | Type | Capacity | Readability | Price |
|---|---|---|---|---|
| Acculab ALC-210.4 | Analytical Balance | 210 g | 0.1 mg | USD 300.00 |
| Mettler Toledo PM4600 DeltaRange | Top Loading Balance | 4100 g | 0.01 g | USD 185.00 |
Understanding the Trade-Off
The two balances serve different weighing philosophies. An analytical balance like the Acculab is built to detect very small mass differences, which is why it offers a much finer readability than a top-loading design. A top-loading precision balance like the Mettler sacrifices some of that fineness for a much larger pan capacity, making it more practical for everyday weighing of larger items. The right one depends on whether your critical samples are under a few hundred grams or often exceed that.
Where Each Product Wins
- Acculab ALC-210.4: Choose it for analytical chemistry, small sample prep, and any process where fine resolution can affect your results. Its capacity is enough for many research and testing workflows.
- Mettler Toledo PM4600 DeltaRange: Choose it for multi-purpose lab weighing, when you need to weigh beakers, flasks, or bulk material that would not fit on an analytical balance. The large capacity covers a much wider range of tasks.
Product Notes
Acculab ALC-210.4 Analytical Balance
The Acculab ALC-210.4 is an analytical balance with a 210 g capacity and 0.1 mg readability. That level of resolution matters when you're weighing small research samples, preparing analytical standards, or doing medical testing where tiny mass differences change the outcome. The balance is designed for scientific research and industrial applications, so it belongs in a lab that needs precise measurements on relatively small samples. The trade-off is capacity: anything above 210 g won't fit on the pan. The unit is used, so plan to calibrate before important measurements. If your workflow rarely exceeds 200 g, this balance gives you the precision to distinguish tiny mass changes.
Mettler Toledo PM4600 DeltaRange Top-Loading Balance
The Mettler Toledo PM4600 DeltaRange is a top-loading precision balance that reads to 0.01 g and accepts up to 4100 g. That makes it a strong partner for general laboratory, research, chemistry, biology, and pharmaceutical work where you're weighing larger quantities. The stainless steel weighing pan and integrated digital controls are practical for daily use, and the Data I/O interface lets you connect the balance to a printer or computer. The DeltaRange function boosts resolution at lower loads, so you still get good sensitivity for smaller weighings within the same instrument. Its readability of 0.01 g is coarser than the Acculab's, so it is not meant for analytical-level precision. This used instrument needs routine verification before critical work.
Final Choice by Use Case
Choose the Acculab ALC-210.4 for small-sample analysis where analytical readability is essential. Choose the Mettler Toledo PM4600 DeltaRange for general-purpose weighing that demands a larger capacity. The table above gives you the exact price difference; let that be a tie-breaker only when both fit your physical weighing needs.

