V-CHEK SARS-CoV-2 Rapid Ag Test (IFA)

This kit is used for in vitro qualitative detection of
SARS-CoV-2 antigen.

SARS-CoV-2 Ag Rapid Test Kit (Fluorescence Immunochromatographic)

This kit is used for in vitro qualitative detection of
SARS-CoV-2 antigen.
This Kit is a lateral flow immunofluorescent sandwich assay that is used with the immunofluorescence analyzer intended
for the qualitative detection of the nucleocapsid protein antigen from SARS-CoV-2 in nasopharyngeal (NP) and nasal (NS) swab specimens directly or after the swabs have been
added to viral transport media from individuals who are suspected of SARS-COV-2 by their healthcare provider.
This test is only for clinical laboratory use or for immediate inspection by medical personnel, not for home testing, and cannot be used as the basis for the diagnosis and exclusion of pneumonia caused by new coronavirus infection, and is not suitable for screening by the general population.
A positive test result needs further confirmation. A negative test result cannot rule out the possibility of infection.
The kit and test results are for clinical reference only. It is recommended to combine the patient’s clinical manifestations and other laboratory tests for a comprehensive analysis of the condition.
This Kit does not differentiate between SARS-CoV and SARS-CoV-2.
This Kit is intended for use by medical professionals or trained operators who are proficient in performing tests using an
immunofluorescence analyzer.


SARS-CoV-2 Ag Rapid Test Kit
(Fluorescence Immunochromatographic)

This reagent uses immunofluorescent double-antibody sandwich to legally detect the antigen of novel coronavirus (SARS-CoV-2) in nasopharyngeal swab and oropharyngeal swab samples. During detection, the fluorescent labeled anti-SARS-CoV-2 monoclonal antibody in the labeling pad binds to the SARS-CoV-2 antigen in the sample to form a complex, and the reaction complex moves forward along the nitrocellulose membrane under the action of chromatography It is captured by the anti-SARS-CoV-2 monoclonal antibody pre-coated by the detection zone (T) on the nitrocellulose membrane, and finally a fluorescent color reaction line is formed in the T zone. If the sample does not contain SARS-CoV-2 antigen, a fluorescent color reaction line cannot be formed in the T zone. Regardless of whether the sample to be tested contains SARS-CoV-2 antigen, a fluorescent reaction line will always form in the quality control area (C). The detection card is detected by the matching fluorescent



1. Store at 2°C – 30°C in the sealed pouch up to the expiration
date printed on the package, forbidden to store under 2°C and
avoid using expired products.
2. The test card is used within 15 minutes after taking out from
the foil envelope. Buffer solution are re-capped in time after use.
3. The buffer should be used immediately after dropping into
the dropper.
4. MFG date and EXP date: marked on the label. The product
will be expired after 12 months.


This Test Kit is applicable to the Immunofluorescence
Analyzer CHF100, CHF200, CHF300, CHF400, CHF500,
CHF600, CHF800, produced by Dongguan Tronho Medical
Technology Co., Ltd.


Lorem i1. Collection of nasopharyngeal secretion: Insert the sterile
swab into the place where the nasopharyngeal secretions are
the most, and rotate the swab close to the inner wall of the nasal
cavity 3 times, remove the swab.
2. Collection of oropharyngeal secretion: Insert the sterile
swab from mouth completely into the oropharyngeal swelling,
centering on the red part of the throat wall, epicondylosis, and
tonsils, wipe and rotate 3 times with moderate force to avoid
touching the tongue and remove the swab.
3. The samples should be used as soon as possible after
collected (within half an hour).
4. Samples should not be inactivated.


1. Positive (+):

indicates that both the detection line and the control line detect a fluorescent signal, and the detection line detection value is more than cut-off value, which is interpreted as positive.

2. Negative (-):

indicates that the fluorescent signal is
detected on the control line, and the detection value of the detection line is less than cut-off value, which is interpreted as negative.

3. Invalid (F):

indicates that no fluorescent signal is detected or only the fluorescent signal is detected on the detection line, the interpretation is invalid, and the sample should be re-tested as required.

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