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Nano-Check TM COVID-19 Antigen Test

Nano-CheckTM COVID-19 Antigen Test is designed to detect the extracted nucleocapsid antigen specific to SARSCoV-2 in nasopharyngeal swab specimens directly collected or collected in viral transport media from individuals who are suspected of COVID-19 by their healthcare provider within the first five days of symptom onset.

  • Sensitivity: 85.0%, Specificity: 100.0%
  • Instant results in 15 minutes
  • No equipment required
  • Detection
  • Room temperature storage (2-30℃)


• Negative:
A single pinkish red colored band at the control line (C) with the absence of band at test line (Ag) is a negative result for SARS-CoV-2 virus.
Negative result does not indicate the absolute absence of SARS-CoV-2 virus in specimen.
Instead, it only indicates that the specimen contains the SARS-CoV-2 virus titer at below the detectable level.
• Positive:
Appearance of pinkish red colored bands at both control line (C) and the test line (Ag) indicates that the SARS-CoV-2 virus was detected.
• Invalid:
If no colored line appears in the control line (C), the test result is invalid. The test result is inconclusive, and the assay should be repeated with a new test cassette.

Test procedure

Clinical performance

Nano-CheckTM COVID-19 Ag Comparator RT-PCR Total Performance (95% CI)
Positive Negative
Positive 34 0 34 PPA: 85.0
Negative 46 50 56 NPA: 100.0%
Total 40 50 90 OPA: 93.3%
- Positive Percent Agreement (PPA) = 34/40 (85.0%), 95% CI: 70.9 to 92.9%
- Negative Percent Agreement (NPA) = 50/50 (100%), 95% CI: 92.9 to 100.0%
- The Overall Percent Agreement (OPA) = 84/90 (93.3%) 95% Cl: 86.2 to 96.9%

Order information

Catalog No. Product Name Sample types Package Storage condition Shelf life
ND-MD8147 Nano-CheckTM COVID-19 Antigen Test Nasopharyngeal Swab 20 tests/box 2℃~30℃ 15 months
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