Introducing the K4 Rapid Device, a cutting-edge Drug of Abuse Test kit developed by QL Biotech, a leading name in the biotechnology industry. With its accredited certification, the K4 rapid device ensures reliability and accuracy in detecting various drugs of abuse, streamlining the monitoring process in healthcare facilities. Our K4 Rapid Device test kits are designed to offer precise cut-off levels, providing decisive results for Methamphetamine, Ketamine, Barbiturates, Benzodiazepines, Phencyclidine, Buprenorphine, Fentanyl, Synthetic Cannabis (K2, K3, K4), and more. Each test kit is specifically calibrated to detect the corresponding substance at the specified cut-off level in urine specimens. Boasting CE certification, our rapid kits ensure compliance with necessary safety, health, and environmental protection legislation, thereby guaranteeing high quality and trustworthy standards. The K4 Rapid Device, our standout product, detects Synthetic Cannabis (K4) at a cut-off of 20ng/ml, reaffirming its sensitivity and specificity.



QL Biotech’s K4 Rapid Device is more than a drug test kit; it manifests our commitment to innovation, accuracy, and the pursuit of elevated healthcare standards. By choosing our test kits, you're opting for quality, dependability, and uncompromised testing accuracy. As a testament to our focus on technological advancement, our K4 Rapid Device leads the charge in delivering trust and assurance in every test kit used. Our expansive offering of Drug of Abuse Test Kits reflects our mission to empower healthcare professionals with the right tools to combat substance abuse. With QL Biotech's K4 Rapid Device, drug testing is no longer a cumbersome task but a seamless part of the healthcare process. Welcome to a new normal delivered through a combination of science, technology, and dedication to improving lives.