Zoll · X Series · Used market pricing intelligence
Tracking daily — 2,286 observations across 2 sources so far. First trend readout after 21 days of history.
Median is the primary statistic — used clinical pricing is full of outliers and the median ignores them.
Asking prices are what sellers want. These are realized prices — what units actually changed hands for — tracked separately from asking and labeled by channel. We never blend the two into one number.
Clinical Asset Index aggregates listing data from eBay, GovDeals, DOTmed, HiBid, LabX, and PublicSurplus daily. Each listing is classified by type (complete system, major module, part / accessory, for parts / repair). Medians and ranges are computed only within peer groups — a complete system is never averaged with parts. Confidence thresholds: comps ≥ 0.65; deal-feed device-match ≥ 0.75 and classification ≥ 0.65. Median is the primary statistic; the mean is shown only as a small secondary number because outliers dominate this market. Data is directional — always verify independently before purchase. Read full methodology →
Clinical Asset Index provides observed market intelligence — not an appraisal, not medical or regulatory advice. Always verify device condition, service history, regulatory status, and seller claims before purchase.
Independent of, and not endorsed, sponsored, certified, or authorized by — and not an agent of — any marketplace, manufacturer, or source. Market Index values are estimates based on observed listing data and do not represent appraisals or guaranteed sale prices.
Affiliate disclosure: CAI may earn a commission from some outbound marketplace links (eBay Partner Network). This does not influence which devices are tracked, the comps shown, the medians/tiers computed, or which listings appear in the deal feeds. See our disclosure for the full statement.
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Small sample — fewer than 5 complete-system listings observed. Treat the price as DIRECTIONAL, not firm. The page upgrades to FIRM once we see ≥5 comps.
Same modality, ranked by complete-system sample size.
Generic checklist for defibrillator — these are the items that drive the largest price variance.
Every answer is built from real observed data — no AI prose, no fabricated specs.