FaStep COVID-19 Antigen Rapid Test Device (Nasopharyngeal/ Oropharyngeal Swab)

The COVID-19 Antigen Rapid Test Device is an in vitro immunoassay. The assay is for the direct and qualitative detection of SARS-CoV-2 viral nucleoprotein antigens from human upper and/or lower respiratory secretions.

The test kits have obtained HSA Provisional Authorisation.
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There are no restrictions on the intended use for kits that are exported. However, HSA guidelines limit the types of end-user of these kits in Singapore, please enquire with us. 



The COVID-19 Antigen Rapid Test Device detects SARS-CoV-2 viral antigens through visual interpretation of colour development. Anti-SARS-CoV-2 antibodies are immobilized on the test region of the nitrocellulose membrane. Anti-SARS-CoV-2 antibodies conjugated to coloured particles are immobilized on the conjugated pad. A sample is added to the extraction buffer which is optimized to release the SARS-CoV-2 antigens from the specimen.

During testing, the extracted antigens bind to anti-SARS-CoV-2 antibodies conjugated to coloured particles. As the specimen migrates along the strip by capillary action and interacts with reagents on the membrane, the complex will be captured by the anti-SARS-CoV-2 antibodies at the test region. Excess coloured particles are captured at the internal control zone.

The presence of a coloured band in the test region indicates a positive result for the SARS-CoV-2 viral antigens, while its absence indicates a negative result. A coloured band at the control region serves as a procedural control, indicating that the proper volume of specimen has been added and membrane wicking is working.

Direction for use:

Materials provided:

  • Individually packed test devices
  • Extraction Tube
  • Individually packed swabs
  • Package Insert
  • Extraction Buffer
  • Nozzle with filter
  • Tube stand

Please contact us here to enquire for price.

Free Delivery: Within 5 working days Free!

Get it Faster!: Within 4 working days $24.99

3 Days Guaranteed Delivery: Within  3 working days $56.99

*Please note that all drug test kits will require a lead time of approximately 3weeks

If you are not completely satisfied with your purchase, simple return the products to us in their original, unopened, unused condition and packaging within 7 days of receipt and we will issue a full refund (excluding original and return delivery charge), or exchange for a different item, if preferred.

If the reason for the return is the product being faulty, do send us an email. We may request you take a photo of how the product mulfunction. Our customer service agent will confirm it via email and we will issue a full refund (excluding original and return delivery charge), or replace it for free (We will fully reimburse you the return shipping too!)