Hexagon OBTI Test
HEXAGON OBTI is a two-part test : a collection tube for the blood sample, and a test bar.
A sample of the presumed human blood trace is transferred into the tube with transport medium. This mixture is added drop by drop to the test. A positive sample is typically detected within 2-3 minutes.
A single blue line means the testing liquid is working fine but no human blood has been detected, two blue lines mean the test has detected human blood.

Each box includes 24 collection tubes and 24 tests.