Qiagen equipment

About Qiagen

Qiagen is a Dutch molecular diagnostics and life sciences sample and assay technology manufacturer, incorporated on 29 November 1984 as Diagen in Dusseldorf, Germany. It was founded by three Heinrich Heine University Dusseldorf doctoral students, Metin Colpan, Karsten Henco, and Jurgen Schumacher, with academic co-founder Detlev Riesner, to supply molecular insight products. The company is legally domiciled in Venlo in the Netherlands and runs its main operations from Hilden in Germany. QIAGEN N.V. is an independent publicly traded company, listed on the NYSE as QGEN and on the Frankfurt exchange as QIA, with no controlling shareholder as of FY2025. Its catalogue covers sample preparation kits and consumables, PCR and digital PCR instruments, nucleic acid purification systems, sequencing kits and panels, molecular diagnostic assay systems, and bioinformatics software. The company's core expertise is the chemistry and automation of extracting and analysing nucleic acids, which places it at the start of most molecular biology and genomics workflows.

Qiagen product lines on Questpair

The maker's work sits in molecular biology and molecular diagnostics, and its instrument classes carry that work directly. Nucleic acid purification systems do the extraction step that every downstream genomics and sequencing experiment depends on, isolating DNA and RNA from blood, tissue, and cell culture samples. The QIAsymphony platform automates this purification across many samples at once, which is why it appears in laboratories running high-throughput molecular diagnostics and biobanking. Thermal cyclers and digital PCR instruments do the amplification and quantification that follow: the QIAcuity line performs digital PCR, partitioning a reaction into thousands of compartments to count nucleic acid targets absolutely, a technique used in gene expression analysis, copy number measurement, and rare mutation detection.

Assay platforms carry the diagnostic side of the catalogue. QIAstat-Dx runs syndromic molecular diagnostics, testing a single sample against a panel of pathogens in one cartridge, and QuantiFERON is an immunoassay-based system widely used for tuberculosis screening. QIAseq designates the sequencing kits and panels that prepare libraries for next-generation sequencing, feeding the proteomics-adjacent and genomics applications that read what the sample contains. The bioinformatics side, QIAGEN Digital Insights, formerly Ingenuity Systems, is the software that interprets sequencing and variant data. Across these classes the recurring theme is a complete path from sample to answer: purification, amplification, detection, and interpretation, which is how a molecular diagnostics manufacturer differs from one that makes a single instrument type.

What is listed on Questpair?

The Questpair catalogue holds 301 Qiagen listings from 14 verified suppliers and distributors across 6 countries. 100 percent of the listings are used. Prices range from EUR 43 to EUR 47.345, averaging around EUR 4.425, a spread that reflects the distance between consumables and accessories at one end and capital instruments such as automated purification and digital PCR systems at the other.

What appears depends on what suppliers have listed at a given time, so the catalogue is best read as a live inventory rather than a fixed product line. For documentation on a specific instrument, a buyer can contact Questpair and specialists respond within an hour. Parts for a listed unit can be sourced via Questpair. Where warranty matters, it is often possible and is arranged in consultation for the specific listing, so the terms attach to the individual unit rather than to the brand as a whole. For a laboratory weighing a used Qiagen platform against a new one, the price difference is the clear distinction the catalogue supports, and the condition and terms of each listing are what to read before committing.

Questpair review of Qiagen

Our take based on listings data and supplier feedback

Qiagen occupies a specific place in the molecular biology supply chain: it makes the chemistry and the instruments that turn a raw biological sample into purified, analysable nucleic acid, and then the assays that read that material. For a buyer looking at the Questpair catalogue, that integration is the first thing the listings reflect. The three benefits above each follow from it, and each deserves scrutiny rather than a simple endorsement.

The breadth claim holds up when you look at what the catalogue actually spans. Sample preparation consumables, purification instruments, and the thermal cyclers that drive the amplification step all come from one maker here, which is genuinely useful when you are building a workflow rather than buying a single box. The practical value is reagent and protocol continuity: a lab that standardises on one extraction chemistry and one amplification platform spends less time revalidating. The qualifier is that breadth in a used catalogue is not the same as breadth in a new price list. What appears on Questpair depends on what suppliers have listed, so the span is real but not guaranteed to cover every stage on any given day. A buyer equipping a full bench should treat the catalogue as a starting inventory, not a complete kit.

The platform point is where Qiagen's reputation does real work. The named families, QIAcuity for digital PCR, QIAsymphony for automated purification, QIAstat-Dx for syndromic testing, are recognised instruments in molecular diagnostics and research genomics, and buying one used is a legitimate way to access that capability at a lower entry cost. The caution is specific to automated platforms: these are instruments with consumables, software, and sometimes assay panels tied to them, so the sticker price is not the whole cost of ownership. Anyone pricing a used QIAsymphony or QIAcuity should budget for the running consumables separately and confirm the condition of the fluidics and optics, because those are the parts that determine whether a purification or partitioning instrument still performs to spec.

The pricing benefit is the most straightforward and the easiest to verify. 100 percent of the listings are used. Prices run from EUR 43 to EUR 47.345, with an average around EUR 4.425. That spread is wide because the catalogue holds both low-cost consumables and accessories at one end and capital instruments such as digital PCR systems at the other. For the expensive platforms the used discount against new is where the saving concentrates, and for a lab working to a fixed capital budget that is the reason to look here first. Warranty is not uniform across a used catalogue; where it matters, it is arranged in consultation for the specific listing, so the condition and terms of the individual unit are what to read rather than any blanket assumption. Taken together, the catalogue rewards a buyer who knows which workflow stage they are filling and treats each listing on its own terms.

**Breadth of sample and assay technology in one catalogue**

The Questpair listings span sample preparation consumables, PCR and digital PCR instruments, and nucleic acid purification systems from a single maker, so a buyer equipping a molecular biology bench can source several workflow stages from the same catalogue.

**Instrument platforms from a recognised molecular diagnostics manufacturer**

Qiagen built its identity on nucleic acid purification and assay chemistry, and the catalogue reflects that, carrying named platforms such as QIAcuity and QIAsymphony alongside the consumables they run on.

**Used units listed below new pricing**

Every Qiagen listing on Questpair is a used unit, and used equipment is listed at lower prices than new, which matters for a capital instrument like a digital PCR system where the new price reaches into the tens of thousands.