Quickly Detect Presence of Human Blood
Verify that your evidence sample is human blood in less than three minutes with this rapid screening test. Accurate and easy to use, the Hexagon OBTI is a two part test — a collection tube for the blood sample and a test bar with indicator window. When a sample of the presumed human blood trace is transferred into the tube with transport medium, then added by drops to the test bar, a positive sample will show you two blue lines in the indicator window denoting the presence of human blood. Single test.