The Rapid Response™ Fentanyl Test Strip Kit (Liquid / Powder) detects the presence of fentanyl in liquid and powder substances at a concentration of 200 ng/ml or higher. This drug test can provide accurate and fast results as soon as 1 minute. For forensic use only. Not an IVD. Kit contains 5 Tests per kit.WARNING: This test does not evaluate drug safety or purity.It is specific for fentanyl screening with no significant cross-reactivity to other opiates, such as morphine and heroin. This kit includes all the necessary materials needed to perform the test: 5 test strips, 5 buffer tubes, 5 swabs, tube stand, results interpretation card, and instructions. Materials in this kit are individually packaged and sealed to prevent contamination. The test results can be viewed in just 1 minute if the control line is present, however, it is recommended to wait 5 minutes after sample collection for best results.