BTNX Rapid Response Fentanyl Test Strips - Recommended By John Hopkins - 5 Test Strips Per Pack - #1 Global Selling Fentanyl Strips
- Easy way to detect fentanyl and other fentanyl analogues in substances.
- Only test strips recommended by John Hopkins University Study.
- Just add 1 oz. of water to substance in question, insert strip, leave in horizontal position for 5 minutes.
- Greater than 98% accuracy, Time to result: 5 minutes.