Choosing a lab balance can stall at the same point: you need fine readability for small samples or enough capacity for larger ones. Both used options in this lab balances scales comparison take different approaches. The Mettler Toledo MS105 is an analytical balance, while the Ohaus SPX2202 is a precision balance. The main trade-off is capacity versus readability.
Quick verdict
If your work involves sub-milligram-level sample masses, the Mettler Toledo MS105 has the readability edge at 0.01 mg, but it costs $789 and is sold as-is with draft shield damage. If you need a general-purpose balance for larger samples, the Ohaus SPX2202 offers 2200 g capacity at $206.15. For most routine lab weighing that doesn't require that level of resolution, the Ohaus is the clearer choice.
Comparison
| Feature | Mettler Toledo MS105 | Ohaus SPX2202 |
| Price | USD 789.00 | USD 206.15 |
| Price bar | | |
| Condition | Used | Used |
| Capacity | 120 g | 2200 g |
| Readability | 0.01 mg | 0.01 g |
| Model | NewClassic MF MS105 | Scout Series SPX2202 |
| Status | As-is / needs repair | Tested working |
Where each product wins
The Mettler Toledo MS105 wins on resolution: its readability lets you detect mass changes far below what the Ohaus can see. It also carries the NewClassic MF name from Mettler Toledo. The draft shield damage and as-is status mean it should be evaluated for repair before use.
The Ohaus SPX2202 wins on capacity: it covers samples that are far beyond the Mettler Toledo's limit, and its readability suits everyday lab work. The Scout Series design with a digital LCD display makes it easier for routine weighing.
Mettler Toledo MS105 NewClassic MF Semi-Micro Analytical Balance Scale 120g
This used Mettler Toledo MS105 is built around analytical weighing with fine readability and a capacity aimed at small-mass measurements. The NewClassic MF type designation points to an instrument intended for small samples. If your workflow needs to resolve tiny differences in sample weight, this is the balance that offers that scale of resolution. The catch is physical damage to the draft shield housing. The unit is sold as-is for parts or repair, and the electronics and internal mechanics reportedly function. That makes it a candidate only if you can handle or repair the draft shield before using it. For routine larger weighings, the small capacity will feel limiting.
Ohaus SPX2202 Precision Balance 2200g x 0.01g Tested Working Lab Scale
This used Ohaus SPX2202 comes from the Scout Series and is described as tested working after service in a research laboratory. It provides practical readability and a generous capacity for everyday weighing, and the digital LCD display makes it straightforward in the lab. The balance was maintained on a regular annual calibration schedule through its service life, but the current calibration certificate is no longer active because the unit is out of service. For many lab tasks, the readability is useful and the capacity is generous. The limitation is that it cannot deliver the resolution of a smaller-sample analytical balance, so it is not the right fit for extremely small sample masses.
Final choice by use case
For analytical work where the finest resolution matters, the Mettler Toledo MS105 is the balance to consider if you are prepared for its as-is repair status and draft shield damage. For larger-capacity routine weighing, the Ohaus SPX2202 is the more practical pick, especially when a more generous sample range matches your work better than micro-resolution.
