[20 Pack] Fentanyl Test Strips – Rapid Testing Kit for Liquids & Powders, High Sensitivity, Individually Packaged

U Catch Fentanyl Test Strips offer rapid, ultra-sensitive detection of fentanyl and analogs in powders, liquids, or pills at a 10 ng/mL cut-off. Ideal for harm reduction, these kits provide results in minutes with up to 98% accuracy when used as directed. Not for urine testing. Easy to use: dip the strip into the substance for 10 seconds and read the result in minutes. Two red lines indicate negative, one red line indicates positive. Each strip is individually packaged for on-the-go testing and peace of mind.