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Optilite® - Optimised Protein System

The robust and proven analyzer from The Binding Site, bringing you a reliable and optimized solution for special protein testing. 

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Average Rating 4.5

|23Scientists have reviewed this product

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Great user experience, very responsive costumer service.


Average Rating 5.0

Application Area:

IgG and IgG subclasses in Clinical Trials Studies

Optilite is our most recent purchase in the lab. In terms of ease of use, it's one of the best I have encountered so far. Technical support is also very responsive. Results are more reliable compared to other Nephelometry instruments.

Review Date: 4 Apr 2024 | Binding Site

I am happy to be able to carry out my work efficiently with quick results.


Average Rating 4.7

Application Area:

Free Light kappa Lambda

It produces results faster than previous equipment(Spaplus). The dilution process is performed on the equipment, making it easy for users to use.

Review Date: 21 Sept 2023 | Binding Site

Improve experimenter convenience and the reliability of results.


Average Rating 3.3

Application Area:

Instrument is used for clinical diagnostics of special proteins in human serum

When using the equipment, it is inconvenient because the operating program cannot be easily accessed and viewed until reexamination. In some cases, the inspection date does not appear when printing data, which can confuse users. Convenient when adding samples. I wish there was a holder that could cover the entire rack where the sample is placed. I think it would be more convenient if the racks attached to the equipment were used in a single row in the future. Having to lift the waste water tank to empty it can cause musculoskeletal disorders, so a connection to the waste water line is necessary. I hope the acceptance criteria for calibration are clearly given. The height of the equipment is high, making it inconvenient to place it on the laboratory table and conduct experiments. We hope that the review of antigen excess will be strengthened and the reliability of results will increase.

Review Date: 21 Sept 2023 | Binding Site

Great results, easy to use, save time


Average Rating 5.0

Application Area:

Instrument is used for clinical diagnostics of special proteins in human serum/urine/CSF

Optilite is a special protein analyzer with outstanding features such as: no need to dilute samples, fully automatic, easy to use, 3 methods of detecting antigen excess so that we can save time, increase productivity, and be confident in our results. We are really satisfied. Thanks.

Review Date: 13 Mar 2023 | Binding Site

Easy to use instrument. Reliable and repeatable results.


Average Rating 4.7

Application Area:

Diagnostics use

Interface is easy to understand. Maintenance is relatively easy. Tests are reliable and repeatability is good.

Review Date: 6 Mar 2023 | Binding Site

Using Optilite for IgG Subclass Testing - my wise decision.


Average Rating 5.0

Application Area:

Special Protein Analyzer

My lab has performed IgG subclass testing for a long time. In initial time, I used Mininepth from The Binding Site - a semi-automatic analyzer for the testing before moving to Optilite and I was convinced about its effectiveness absolutely. From now, I have used Optilite for more than 3 years and it can help the workflow in my lab fast, smooth and save time. Note that the analyzer fits your lab if your lab throughput is high. With my lab, at least 20 tests per day can help us keep the balance between the operating cost, reagent cost and profit of the testing. Analyzer: easy to use and maintain. Rarely meet an error regarding hardware and spare part. Reagent: stability time after opening a vial is 3 months, large measurement range. Cleansing chemicals are cheap and trivial.

Review Date: 15 Feb 2023 | Binding Site

Prozone effect and IgG subclass results


Average Rating 4.3

Application Area:

Instrument is used for clinical diagnostic of special protein in human serum

Although it is usefully used in the laboratory, issues such as the prozone effect occur occasionally. Also, feedback on the results of high IgG subclasses is needed.

Review Date: 15 Feb 2023 | Binding Site

Great results


Average Rating 4.0

Application Area:

Analyze metabolites in serum

High quality and reproducible results

Review Date: 13 Feb 2023 | Binding Site

Good analyser and software


Average Rating 5.0

Application Area:

Serum Protein

Easy to use. Good and stable performance. However, the freelite and hevylite assays need extra attention to correlate with clinical picture during interpretation.

Review Date: 1 Feb 2023 | Binding Site

Excellent performance.


Average Rating 5.0

Application Area:


The software is really user-friendly. The operation is very convenient. It's a stable and reliable system with excellent performance.

Review Date: 11 Jan 2023 | Binding Site

To deliver the best service to your clinicians, special protein testing requires consistently high-quality results with predictable, short turnaround times. The highly reliable and compact Optilite system features fully automated dilutions plus unrestricted access for samples and reagents, enabling a streamlined workflow for your entire laboratory.

Worldwide, over 1000 satisfied customers are benefiting from the optimised solution of Binding Site assays and systems. Through the support from a global team of technical and scientific protein experts, we bring you consistent throughput and high-quality results combined in a seamless workflow for ultimate peace of mind.


  • Average mean time between failure greater than 19 months*
  • Predictable reporting times enabling optimal management of laboratory staff and resources
  • Full traceability through barcoded reagents, calibrators and controls
  • 3 different methods of antigen excess detection applied when required during assay design
  • IVDR Class A compliant and supports ISO 15189 accreditation
  • Supported by a global team of technical and scientific experts

*Based on 12 months global data between January 2023 and December 2023


  • Consistent and high average throughput of 120 tests/hour
  • Quick time to reportable result - approximately 40% faster compared to alternative systems1
  • Save reagents with our optimized protocols, including large dilution steps and wide measuring ranges
  • Single-use cuvettes remove risk of cuvette degradation and potential source of carry-over
  • Cost-effective reagent management with up to 3 months open vial stability
  • High-quality test menu including unique assays such as Hevylite® assays, CH50 and IgA1/2

1 Ghillani P et al. Analytical performances of Optilite® turbidimeter (The Binding Site): a new dedicated analyser for specific proteins determination. Ann Biol Clin (Paris) 2017; 75:29-27


  • Fully automated dilutions for minimal hands-on time
  • Continuous loading and unloading of samples, reagents and disposables
  • Capacity of 360 disposable cuvettes increasing walk-away time
  • Efficient reagent management with on-board cooling
  • Short turnaround time (STAT) function for urgent samples
  • Easy-to-use software and bi-directional laboratory information system (LIS)-interface

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