Tracking 16 current listings across 1 source. The price tier reflects confidence; the count reflects how deeply we're tracking this device. Data last updated Jun 4, 2026.
The work behind the Watson-Marlow 520S number that most listings hide.
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Median is the primary statistic for used clinical pricing — outliers dominate the data.
Same device, different marketplaces. Sorted by median ascending — cheapest source first. Last-seen date shows data freshness.
| Source | Listings | Range (min – max) | Median (all types) | Last seen | Cheapest |
|---|---|---|---|---|---|
| eBay | 16 | — | $1,300(all types) complete system: limited data | — | View → |
Same modality, ranked by complete-system sample size.