The iScreen Oral Fluid Click Cube is a non-invasive solution for workplace and insurance drug testing, eliminating the need for restroom facilities. The device features a unique click mechanism that ensures the sample is properly secured and the test is initiated by the collector. A built-in saturation indicator on the collector swab turns red once sufficient oral fluid has been gathered, preventing insufficient sample errors. Because oral fluid testing is observed, it significantly reduces the risk of specimen adulteration or tampering compared to traditional urine-based methods.