Source Confirmed
Seller-confirmed
- Two GSI TympStar Pro consoles and a $1,187 observed high bid with two bidders.
- Two apparent GSI probe assemblies and two RadioEar IP30 contralateral phones are visible.
Analysis snapshotSnapshot decision:REVIEW
2× GSI TympStar Pro Middle-Ear Analyzers — Auction Analysis
Two GSI TympStar Pro analyzers with two visible probe assemblies and two IP30 contralateral phones reached a $1,187 observed bid, but function, calibration, options, and complete-kit status remain unverified; the pair's risk-adjusted ceiling is about $1,400.
Analysis snapshot · Historical — observed August 29, 2026. The scheduled close date of September 2, 2026 has passed. The price, evidence, economics, and recommendation remain exactly as recorded and are not current.
Decision at a glance
RecommendationREVIEW
- Maximum hammer bid
- $1,400
The auction bid ceiling supported by this analysis, if one is defensible; see costs below for buyer-premium treatment.
Why this decision
REVIEW: the immutable $1,187 observed bid remains below the roughly $1,400 pair ceiling, but modest functional, calibration, accessory, or freight deterioration can eliminate the margin.
What to verify before bidding
- Neither console is shown powered or performing a measurement.
- No current calibration certificate, cavity check, or pressure-system verification is supplied.
- Visible probes and IP30 phones are valuable, but complete standard kits are not established.
See costs and maximum bid for the displayed assumptions and buyer-premium treatment.
- Snapshot observed bid
- $1,187
- Bidders
- 2
- Blind-model resale
- $5,000
Snapshot provenance and timing · observed August 29, 2026 · scheduled close September 2, 2026
GSA Auctions sale 4-1-QSC-I-26-472, lot 016 · Anchorage, Alaska
Snapshot observed August 29, 2026
Scheduled close September 2, 2026
Analysis prepared August 29, 2026
Published August 29, 2026 · page updated August 29, 2026
Prepared and published by Oleksii Udod for LotCaliper.
Continue after this auction
This auction snapshot is historical. Continue with related research, or review a relevant published analysis whose recorded scheduled close has not passed.
Relevant analyses with future scheduled closes
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These are individually prepared, time-stamped analyses with recorded scheduled closes. Verify the official auction before acting.
Auction snapshot
At the August 29, 2026 open-auction observation, the high bid was $1,187 with two bidders. A bid-history label of WINNING was an interface state only, not evidence of a final sale, payment, settlement, or award.
Two visible core probe/phone sets improve this lot beyond bare consoles, but no visual configuration claim substitutes for boot, pressure/acoustic performance, or current calibration.
Review and correction history
Independent review not recorded for this legacy analysis. No corrections recorded.
View review and correction details
Independent review not recorded
Published before the current independent-review gate; no completed independent review is recorded.
How independent review worksHow evidence is classified
Seller facts, photo-derived observations, manufacturer context, unknowns, and LotCaliper assumptions remain explicitly separated.
Photo Derived
Photo-derived
- Both cabinets, displays, controls, rear ports, probe assemblies, IP30 phones, cables, and mains cords are visible; no catastrophic exterior damage is apparent.
- Visible accessories are not promoted to two complete standard kits.
Not Established
Not established
- Boot/self-test, pneumatic and acoustic performance, probe recognition, reflex testing, calibration, service history, and current measurement accuracy.
- Calibration cavities, eartips, cleaning kits, manuals, optional features, firmware, WideBand, Multi-Hz, ARLT, and license entitlement.
Manufacturer Context
Independent context
- GSI documentation identifies a standard probe assembly with contralateral insert phone and describes additional kit items and optional features separately.
- Exact-model realized auction evidence and dealer asks represent materially different condition and warranty states.
Lotcaliper Assumption
LotCaliper assumptions
- $5,000 conservative pair resale after meaningful verification; approximately $4,500–$6,500 broader range.
- $1,800 non-acquisition burden excluding selling fees and hammer; ~$1,400 blind pair maximum hammer.
Equipment identity
Analyzer · quantity 2
Grason-Stadler / GSI TympStar Pro clinical middle-ear analyzer
Identity confidence: High
Identity evidence
Seller identifies two GSI TympStar Pro analyzers; supplied front and rear photographs match the chassis, controls, branding, and I/O layout.
GSA Auctions · Image · observed August 29, 2026
Configuration
Two GSI probe-box / probe-assembly sets
Confirmed · Medium High confidence
Configuration evidence
Two matching probe assemblies are visible in the supplied accessory photographs.
GSA Auctions · Image · observed August 29, 2026
Two RadioEar IP30 contralateral insert phones
Confirmed · Medium High confidence
Configuration evidence
Two RadioEar IP30 contralateral insert phones are visible.
GSA Auctions · Image · observed August 29, 2026
Calibration cavities, eartip kits, cleaning kits, probe mounts, manuals, and complete standard accessories for both consoles
Not established · no source evidence establishes presence or absence
Configuration evidence
The photographs do not establish a complete standard accessory kit for either console.
GSA Auctions · Image · observed August 29, 2026
WideBand Tympanometry, Multi-Hz, ARLT, firmware version, and optional software/licensing
Not established · no source evidence establishes presence or absence
Configuration evidence
The base model name and photographs do not establish optional features or entitlements.
GSA Auctions · Image · observed August 29, 2026
Condition
Untested
The seller reports used/as-is equipment that may need repairs; dark displays are neither failure nor operating evidence, and no boot, pressure, acoustic, probe, reflex, or calibration test is supplied.
Evidence confidence: High
Condition evidence
Seller condition statement and supplied photographs do not demonstrate operation or current calibration.
GSA Auctions · Image · observed August 29, 2026
Market evidence
Market evidence strength
Medium
Public auditability
Limited Legacy
Evidence recency
Not Recorded
No structured comparable-evidence metadata was preserved for this dated snapshot. Public auditability is limited; the numeric resale snapshot cannot be independently audited from comparable records on this page.
Legacy evidence counts were not preserved. Unknown is not reported as zero.
Sensitivity and robustness
Requires Verification
The scenarios show potentially workable economics, but the stated verification gate must be resolved before bidding responsibly.
Blind/as-is pair model
- Max hammer
- $1,400
- Gross resale model
- $4,500–$5,000
At the $1,400 ceiling, the model produces about $1,050 profit and 32.8% ROI. The $1,187 open-auction observation is not a final sale.
Costs and maximum bid
| Transaction / operating cost | Amount | Basis |
|---|---|---|
| Selling Fees | $750 | LotCaliper assumption: 15% of modeled gross resale. |
| Shipping | $400 | LotCaliper pickup, packing, rigging, and inbound-logistics reserve; not a carrier or GSA quote. |
| Testing Repair Reserve | $1,000 | LotCaliper functional-test and diagnostic reserve. |
| Risk Buffer | $400 | Two-unit correlated condition risk, calibration, probe/IP30 state, incomplete standard-kit risk, optional-feature uncertainty, Anchorage removal, and returns exposure. |
- Buyer premium
- Not modeled
- Return requirements
- $500 minimum profit · 30% minimum ROI
- Computed bid constraints
Profit floor: $1,950
ROI floor: $1,469
Binding: ROI floor
- Snapshot blind/as-is max hammer
- $1,400
- Modeled result at recorded bid
- $1,050 profit · 32.80% modeled ROI
This is a reseller ceiling, not a prediction of the auction's closing price. Any buyer premium or other unquoted acquisition charge must be deducted before bidding.
Pair configuration, calibration risk, and Anchorage economics
The pair is materially better than two bare consoles because the supplied photographs show two probe assemblies and two IP30 phones. That observation does not establish complete standard kits, software options, or functional and calibration state.
The $1,187 observed bid is already close to the conservative ceiling. A failed probe, calibration expense, accessory deficit, or higher packing/shipping burden can turn the modeled spread negative.
- Boot both consoles, verify probe recognition, pressure sweep/seal behavior, stimulus paths, cavity checks, and current calibration before increasing the bid.
- Inventory both kits and obtain a real pickup/shipping quote before treating the observed price as attractive.
Recommendation and rationale
Snapshot decision
REVIEWREVIEW: the immutable $1,187 observed bid remains below the roughly $1,400 pair ceiling, but modest functional, calibration, accessory, or freight deterioration can eliminate the margin.
Confidence
- Identity
- High
- Configuration
- Medium High
- Condition
- Low
- Market Support
- Medium
- Costs
- Medium
Market support assesses how well the available evidence supports the resale assumption. Exact third-party marketplace records may be omitted when source-use rights are unclear. Each dimension uses the published methodology rubric; a confidence label measures the strength and boundedness of its evidence, not the likelihood of a profitable outcome.
Risks and unknowns
High · Functionality Unverified
Neither console is shown powered or performing a measurement.
Exterior completeness does not establish pneumatic, acoustic, probe, or reflex performance.
High · Calibration Unverified
No current calibration certificate, cavity check, or pressure-system verification is supplied.
Clinical measurement value depends on validated pressure and acoustic performance.
Medium · Accessory Completeness Unknown
Visible probes and IP30 phones are valuable, but complete standard kits are not established.
No incremental value is assigned to unresolved kit items or options.
Medium · Remote Logistics
Buyer-managed pickup and shipment from Anchorage can exceed a routine bench-instrument move.
The reserve is a LotCaliper assumption, not a carrier quote.
Sources
View cited public sources
- GSA Auctions API / Data.gov
Official public provenance for auction facts; no unverified direct item URL is invented.
- GSI TympStar Pro
Official product, standard-accessory, and optional-feature context; linked and paraphrased.
- GSI TympStar Pro brochure
Official technical and accessory context; linked and paraphrased.