Choosing between two lab balances scales usually comes down to what you can accept in a used instrument. On one side is the Mettler AE 100 Analytical Balance, a lower-cost option that is still functional. On the other is the METTLER TOLEDO MS4002TS Precision Balance, a higher-capacity unit that is currently a repair project. The price difference is real, but the working state gap matters more. Your decision depends on whether you need measurements immediately or can take on a restoration project.
Quick verdict
If your goal is to weigh samples in the near term, the Mettler AE 100 is the stronger pick. It is an analytical balance, costs less than its competitor, and is ready for regular use after calibration. The METTLER TOLEDO MS4002TS is positioned for larger weighing jobs, but it is not operational. Unless you are prepared to troubleshoot, that precision balance will not be reading weights for you soon.
At a glance
| Product | Price | Condition | Best for |
|---|---|---|---|
| Mettler AE 100 Analytical Balance | $150.00 | Used and functional | Physical lab weighing |
| METTLER TOLEDO MS4002TS Precision Balance 4,200g | P&R | $199.95 | For parts or not working | Repair project |
Where each balance wins
The AE 100 wins when you need a balance now. Its lower price is a clear advantage, and the only major setup step is getting it ready. The MS4002TS wins if you are shopping for a precision balance platform or a donor unit. That potential is blocked for now by its non-working state.
Product notes
Mettler AE 100 Analytical Balance Laboratory Scale with Draft Shield
At $150.00, this analytical balance is the less expensive option in the pair. It is a Mettler AE 100 model, a dedicated analytical balance intended for physical laboratory use, and it remains functional despite scuffs and blemishes on the housing. The integrated draft shield is already part of the unit, which is helpful for weighing small samples where air movement can affect the reading. The catch is calibration: the balance needs to be calibrated, and no calibration weights are included, so you will need to source those before you can rely on its measurements. For a physical lab that can manage that setup step, this is the balance that gets you weighing sooner.
METTLER TOLEDO MS4002TS/00 Precision Balance 4,200g
This precision balance costs $199.95 and is not ready for weighing. It is a METTLER TOLEDO MS4002TS/00 model with a 4,200g capacity, so it is geared toward larger samples than an analytical balance. The unit powers on but fails to load its application, and the load cell is untested, meaning the core weighing mechanism remains an unknown. On the positive side, the display and all ports and jacks are in good shape, and the intended use case is a biological laboratory. Cosmetic issues include a chipped rear static foot tip and a cracked plastic ring around the weigh pan. Buy it only if repair work or component salvage is part of your plan.
Final choice by use case
Choose the Mettler AE 100 when you need a working balance and can arrange calibration. Choose the METTLER TOLEDO MS4002TS when you want a large-capacity precision balance for biological lab work and you are ready to take on a repair. For most people, the working AE 100 is the safer buy; for a technician with time and parts, the MS4002TS is the more interesting challenge.
