5 Reasons Compact Labs Choose the Roche Cobas Pure e402 for Immunoassay Testing
Smaller laboratories still need immunoassay results on the same timeline as a large hospital: a troponin, a thyroid panel, or a pregnancy test cannot wait for a courier. Sending those tests out adds days. Adding a full-size immunoassay system adds floor space and reagent waste the lab will never use.
Roche Diagnostics designed the Roche Cobas Pure e402, the immunochemistry unit of its cobas pure integrated solutions, to close that gap. A published multi-site evaluation describes the cobas pure platform as designed for small-to-medium workloads of roughly 50 to 300 samples per day.
Here are 5 reasons compact laboratories choose the Roche Cobas Pure e402.
1. Right-Sized Throughput: Up to 120 Tests per Hour
The e402 delivers up to 120 immunochemistry tests per hour using heterogeneous immunoassays, within a footprint Roche lists at 1.2 square meters. That is the right scale for a lab that handles a few hundred samples a day and does not want to pay for the capacity of a high-volume system.
2. Fast STAT Results
Roche reports that 93% of its immunoassays have reaction times of 18 minutes or less, and the e402 includes 9-minute STAT applications for time-sensitive tests. For a clinic or small hospital that depends on a rapid cardiac or hormone result, that keeps the in-house lab competitive with a larger facility.
3. 28 Cooled Reagent Positions
Twenty-eight onboard, refrigerated reagent positions keep a working immunoassay menu ready to run. Diamond's refurbished e402 carries a tested menu of 71 assays and runs plasma, serum, and urine samples, with a minimum sample size of 4 μL.
4. Carryover and Sample Protection Built In
The e402 uses disposable assay tips and cups for carryover-free pipetting, and it checks each sample with liquid level detection, clot detection, and air aspiration detection. Diamond lists direct STAT loading and automated sample handling on the unit.
5. Standardized with Larger cobas Platforms
Roche designed cobas pure to use the same reagents as its larger cobas pro platform, and the published evaluation notes that results should be comparable between the two regardless of workload. A smaller site can therefore run the same assays as a central lab. Paired with the chemistry unit, the e402 forms the serum work area configuration of cobas pure, and our guide to the Roche Cobas Pure c303 covers the chemistry and ISE side.
Bring Immunoassay Testing In-House Without the Footprint
At Diamond Diagnostics, we help laboratories right-size their immunoassay capacity so they are not paying for throughput they will not use.
Every Roche Cobas Pure e402 we supply undergoes our complete Down-To-Frame® refurbishment protocol, including full disassembly, component-level restoration, and rigorous multi-level quality control validation, and every unit is eligible for field service coverage.

