About Us

CO-Check is a trademark under Sanwa BioTech. We founded with core mission to streamline the clinical diagnostic process with Point-Of-Care Testing (POCT) solutions.

CO-Check is developed as lateral flow based rapid test kit and designed as a series of personalized POCT tool that provides reliable and convenient diagnostic result to individuals and front-line healthcare workers for a faster response to time-critical diseases like the COVID-19.

With CO-Check, we deliver well-packed equipment for individuals and front-line workers to conduct tests away from crowds. This dramatically reduces risk of exposure.

Quality Assurance

We are certified companies with ISO 13485:2016 compliance in medical device manufacturing and R&D in Hong Kong since 2018.

It manifests our capacity and qualification to consistently meet quality management requirements to develop and manufacture medical device and test and deliver reliable products to our customers.

Our Team​

We have been working hard to become a leading player from Asia with design knowhow, manufacturing capability, and all vertically integrated solutions.

We have 60+ staffs (with 40% doctor’s and master's degrees, 58% R&D staffs) working round the clock during the crisis of COVID-19 pandemic.

we aim for maximum accuracy For your peace of mind
Clinical Sensitivity (Ct Value < 33) : 98.0%
臨床測試靈敏度(Ct值<33) : 98.0%
Clinical Specificity : 99.9%
臨床測試特異性​ : 99.9%
Download Quality Assurance / 下載質量證書
Download User Manual / 下載用戶手冊


- Pink / Purple line appears in both the "C" and "T" region
- 粉紅色/紫色線同時出現在“ C”和“ T”區域​

​- Protein antigen of the SARS-CoV-2 virus were found in your sample
- 樣本中含有新冠病毒抗原.


- Pink / Purple line appears in only the "C" region ​
- 粉紅色/紫色線僅出現在“ C”區域 ​

- Protein antigen of the SARS-CoV-2 virus were not found in your sample.​
- 樣本中檢測不出新冠病毒抗原


- No Pink / Purple line in the "C" region ​
- “C”區域中沒有粉紅色/紫色線

- The test is unable to determine whether there are proteins antigen of the SARS-CoV-2 virus or not. A new test is needed.
- 不正確地操作或檢測卡損壞,應再仔細閲讀使用手冊,用新的測試套裝重新檢驗