Countable Labs announced it has obtained CE marking for its Countable 4 platform, a single-molecule PCR instrument designed to detect rare variants with low variant allele frequencies and deliver multiplexing without standard curve dependencies. The company said the platform can support genomic titer and integrity testing for AAV and genomic samples, along with applications spanning rare variant detection, pathogen quantification, and environmental or food safety monitoring. Countable’s CE clearance expands its ability to sell to European biopharma and contract manufacturing teams, with the company positioning Countable PCR as a bridge between conventional PCR workflows and next-generation sequencing approaches.