Awareness Technology ChemWell 2 or Elisys Duo: Which ELISA Analyzer To Choose?

Automated ELISA analyzers such as the Elisys Duo and ChemWell 2 offer a range of features and specifications to help you determine the best fit for your laboratory's needs.

Company HUMAN Awareness Technology
Model Elisys Duo ChemWell 2
Analyzer type 2-plate fully automated ELISA analyzer 2 microwell plate analyzer, performing both ELISA assays and CLIA assays
Plate loading capacity Up to 3 plates/run Can run mixed modality assays on each of the 2 microwell plates
Samples positions Up to 144 tubes 96 sample capacity
Reagent positions 40 positions on five reagent racks 33 bottle capacity
Internal barcode reader Sample ID, rack type Integrated bar code scanning with positive patient ID system
Pipetting system 300 μl and 1100 μl carbon tips (conductive) Liquid sensing probe tips
Number of tips Up to 3 tip racks for 300 μI or 1100 μI disposable tips 96
Onboard capacity tips 288 tips Liquid sensing disposable probe tips 96 capacity
Computer Internal External
Interfaces USB, VGA, LAN USB
LIS RS232, bi-directional, ASTM & free definable protocol Ethernet, uni-directional, free definable protocol, manual execution

*All information is correct as of March 2024



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Choosing the right automated ELISA analyzer can significantly impact laboratory efficiency and accuracy. This article provides a detailed comparison of the Elisys Duo and ChemWell 2, highlighting their key features and capabilities to help you make an informed decision.

Analyzer Type

The type of analyzer defines its functionality and versatility in performing various assays. A fully automated system can streamline operations and improve throughput.

  • Elisys Duo: A 2-plate fully automated ELISA analyzer, ideal for laboratories requiring high automation and precision.
  • ChemWell 2: A versatile 2 microwell plate analyzer capable of performing both ELISA and CLIA assays, providing flexibility for mixed modality testing.

Plate Loading Capacity

The number of plates an analyzer can handle at once impacts its throughput and efficiency. Higher capacity allows for more simultaneous testing, saving time.

  • Elisys Duo: Can handle up to 3 plates per run, suitable for medium to high throughput needs.
  • ChemWell 2: Capable of running mixed modality assays on each of its 2 microwell plates, offering flexibility for different testing requirements.

Samples Positions

Indicates the number of sample tubes the analyzer can hold, affecting the volume of tests it can process at once. More sample positions enable higher throughput.

  • Elisys Duo: Accommodates up to 144 tubes, supporting large-scale testing without frequent reloads.
  • ChemWell 2: Holds 96 samples, making it efficient for medium-sized batches.

Reagent Positions

The number of reagent slots determines the variety of tests the analyzer can perform simultaneously. More positions enhance flexibility in handling different assays.

  • Elisys Duo: Offers 40 positions on five reagent racks, allowing a broad range of tests.
  • ChemWell 2: Provides 33 bottle capacity, sufficient for various testing needs but with slightly less flexibility than the Duo.

Internal Barcode Reader

Automated barcode readers enhance sample tracking and identification, reducing errors and improving workflow efficiency.

  • Elisys Duo: Features basic sample ID and rack type identification.
  • ChemWell 2: Integrated barcode scanning with a positive patient ID system, ensuring accurate sample tracking.

Pipetting System

Critical for accurate liquid handling, the pipetting system directly affects test precision and repeatability.

  • Elisys Duo: Utilizes 300 μl and 1100 μl conductive carbon tips for high precision.
  • ChemWell 2: Employs liquid sensing probe tips, providing accurate liquid handling capabilities.

Number of Tips

The number of tips an analyzer can hold impacts its operational continuity. More tips mean longer periods of uninterrupted operation.

  • Elisys Duo: Supports up to 3 tip racks for 300 μl or 1100 μl disposable tips, accommodating 288 tips in total.
  • ChemWell 2: Holds 96 liquid sensing disposable probe tips, suitable for consistent use without frequent replacements.

Onboard Capacity Tips

The onboard capacity for tips affects how long the analyzer can operate continuously without needing resupply.

  • Elisys Duo: Can store up to 288 tips, enhancing workflow efficiency and reducing downtime.
  • ChemWell 2: Provides 96 liquid sensing disposable probe tips, adequate for medium-scale operations.


The type of computer (internal or external) used to control the analyzer affects its integration and ease of use.

  • Elisys Duo: Features an internal computer, streamlining operations and reducing the need for additional hardware.
  • ChemWell 2: Uses an external computer, offering flexibility in upgrades and maintenance.


Connectivity options determine how well the analyzer integrates with other lab equipment and information systems.

  • Elisys Duo: Equipped with USB, VGA, and LAN interfaces, providing robust connectivity.
  • ChemWell 2: Offers a USB interface, sufficient for basic connectivity needs.

Laboratory Information System (LIS)

Integration with LIS enhances data management and workflow efficiency, crucial for modern laboratories.

  • Elisys Duo: Supports RS232, bi-directional communication with ASTM & free definable protocols, providing excellent integration flexibility.
  • ChemWell 2: Features Ethernet, uni-directional, and free definable protocols, with manual execution, suitable for basic LIS integration.


When choosing between the Elisys Duo and ChemWell 2, consider your laboratory's specific needs regarding throughput, flexibility, and integration capabilities. The Elisys Duo offers higher sample and reagent capacity and robust connectivity options, making it ideal for high-throughput environments. The ChemWell 2, with its mixed modality capabilities and integrated barcode scanning, provides versatile testing solutions. Evaluate these features to select the analyzer that best fits your laboratory's requirements.