Whether you desire to learn if you have had COVID-19, or simply want to know if you have gained immunity due to vaccination, the Clarity COVIBLOCK™ is one of the most accurate and affordable options available, and you only have to wait about 10 minutes for your results. COVIBLOCK™ test kits are available for direct sale to labs or clinics that employ properly trained clinicians, or can be administered by ESP qualified medical technicians.


  • Combined Sensitivity 93.3%
  • Combined Specificity 98.8%
  • 95% Overall Accuracy
  • Use Whole Blood, Plasma or Serum
  • Fast & Easy (with positive results as fast as 10 minutes)
  • Room Temperature Storage

Rapid COVID-19 Testing is simply administered via a finger prick, requiring only one drop of blood, and provides results in 10-20 minutes. Results are easy to read and can be verified onsite or via telehealth. Data can be uploaded to the patient’s HIPAA-compliant electronic health record. The process is secure, mitigating liability risk for employers.


  • The Clarity COVIBLOCK™ COVID-19 Rapid Test Cassettes is an in vitro, rapid, qualitative immunoassay for the simultaneous detection and
    differentiation of IgG and IgM antibodies of COVID-19 in Whole blood ( Fingerstick and Venous) , Plasma or Serum.
  • The Clarity COVIBLOCK™ COVID-19 Rapid Test Cassette used with Fingerstick whole blood specimen is currently classified as CLIA Waived,
    and authorized for use at Point of Care (POC) settings under a CLIA Certificate of Waiver, Certificate of Compliance, or Certificate of
  • This test is only provided for use in laboratories or by healthcare workers at the point-of-care.
  • Negative results do not rule out SARS-CoV-2 infection, particularly in those who have been in contact with the virus. Follow-up testing with a molecular diagnostic test should be considered to rule out infection in these individuals.
  • Results from antibody testing should not be used as the sole basis to diagnose or exclude SARS-CoV-2 infection or to inform infection status.
  • Positive results may be due to past or present infection with non-SARS-CoV-2 coronavirus strains, such as coronavirus HKU1, NL63, OC43, or 229E.
  • Not for the screening of donated blood.
  • The Clarity COVIBLOCK™ COVID-19 Rapid Test Cassettes are not OTC approved and cannot be purchased online or used at home.
  • The Clarity COVIBLOCK™ COVID-19 Rapid Test Cassettes CLIA Waiver can be found at: https://www.fda.gov/media/140079/download
  • CLIA waived and POCT approved.