In 1995, CTL’s founding scientists pioneered image analysis-based ELISPOT counting (US Patent 6,410,252 B1), laying the foundation for the development of ImmunoSpot® Analyzers. Since then, thousands of these instruments have been sold globally, supporting the advanced imaging needs of leading academic and biotechnology researchers. Discover why ImmunoSpot® Analyzers continue to set the benchmark in the field.

Not only are ImmunoSpot® Analyzers the most widely adopted ELISPOT/FluoroSpot analyzers on the market, they are also highly versatile. These systems can be used to read a variety of microtiter plate- or Peri-dish-based assays under both visible and fluorescent light, across microscopic and macroscopic ranges. Powered by BioSpot™ software, their capabilities include cell counting, cytotoxicity and serum neutralization assays, colony counting, and more — delivering the functionality of multiple instruments in one compact system.

Explore how CTL’s Readers have earned their reputation as the gold standard for viral infectivity assays.

CTL offers an extensive selection of Reader models to suit various needs and budgets. Browse our latest model lines below. Our team is happy to help you choose the model that’s right for you. We also provide factory refurbished analyzers and analysis services.