At QL Biotech, we are committed to providing state-of-the-art drug testing solutions and our COT Rapid Device is testament to that. Designed specifically for optimal precision, this device quickly identifies the presence of Cotinine in urine samples, making it an invaluable tool in substance abuse screening. Our COT Rapid Device can detect Cotinine levels as low as 200ng/ml, providing an incredibly accurate and reliable result. This is achieved using a one-step procedure that eliminates any chance of error, ensuring maximum accuracy every time. We believe that a good testing kit should be as user-friendly as it is accurate. With this in mind, we have crafted our COT Rapid Device to be simple to use without compromising on its sharp acuity. Each test kit is accompanied by clear instructions for ease of use, even for people with limited technical knowledge. QL Biotech's COT Rapid Device is more than just a tool; it is the bridge between uncertainty and assurance. It is suited for a wide range of applications, from pre-employment drug screenings to random testing in work environments, and from medical and health centers to home use.



Our comprehensive range of drug abuse test kits doesn't just stop at Cotinine; we offer an extensive list of readily available testing solutions for various substances such as Morphine, Methamphetamine, Ketamine, Ecstasy, Marijuana, Amphetamine, Barbiturates, Benzodiazepines, and many more. Each device is crafted with meticulous precision, adhering to CE certification standards. At QL Biotech, we pledge to provide you with reliable solutions for all your drug testing needs. Our promise is to deliver fast, precise, and dependable results every time with our COT Rapid Device and our wide range of other substance detection kits. Trust in our technology for a safer, healthier future.