WiseHatch Fentanyl Test Strips packaging with instructions on a white background
Front view of a WiseBatch Harm Reduction Fentanyl (FYL) test strip single-use pouch on a transparent background. Individually sealed diagnostic strip for drug checking and public health harm reduction programs.
Complete Fentanyl detection kit including the WiseBatch Harm Reduction single-use pouch, one FYL test strip, and a blue micro measurement scoop. The back of the pouch displays visual instructions and a QR code for detailed testing guidance.
Promotional infographic for WiseBatch Fentanyl (FYL) test strips highlighting 98-99% industry-leading accuracy. Shows a hand dipping a test strip into a sample, with a golden seal of accuracy and text indicating it detects Fentanyl in pills, powders, and liquids.
Illustrated instruction guide for Fentanyl (FYL) test strips. Shows the process of crushing the sample, mixing with water, and dipping the strip for 15 seconds. Includes a QR code to watch a video guide and instructions for reporting test results.
Educational infographic for Fentanyl (FYL) test strips. Shows visual key for results: two lines for "No Fentanyl Detected" and one line for "Fentanyl Detected." States results are ready in 1-2 minutes for rapid drug checking.
Box of WiseBatch Fentanyl Test Strips on a white background
Test strip packaging with instructions on a white background
WiseHatch Fentanyl Test Strips packaging with instructions on a white background
Front view of a WiseBatch Harm Reduction Fentanyl (FYL) test strip single-use pouch on a transparent background. Individually sealed diagnostic strip for drug checking and public health harm reduction programs.
Complete Fentanyl detection kit including the WiseBatch Harm Reduction single-use pouch, one FYL test strip, and a blue micro measurement scoop. The back of the pouch displays visual instructions and a QR code for detailed testing guidance.
Promotional infographic for WiseBatch Fentanyl (FYL) test strips highlighting 98-99% industry-leading accuracy. Shows a hand dipping a test strip into a sample, with a golden seal of accuracy and text indicating it detects Fentanyl in pills, powders, and liquids.
Illustrated instruction guide for Fentanyl (FYL) test strips. Shows the process of crushing the sample, mixing with water, and dipping the strip for 15 seconds. Includes a QR code to watch a video guide and instructions for reporting test results.
Educational infographic for Fentanyl (FYL) test strips. Shows visual key for results: two lines for "No Fentanyl Detected" and one line for "Fentanyl Detected." States results are ready in 1-2 minutes for rapid drug checking.
Box of WiseBatch Fentanyl Test Strips on a white background
Test strip packaging with instructions on a white background

FYL Test Strip Kit – Box of 5 with Micro Scoop & Test Receptacle

$11.95
/
Shipping calculated at checkout.
Pack Size
Download FYL Test Strips Instructions Guide

Free shipping when your test strips and kits total $49.90 or more.

Purchase order or tax-exempt? Request a quote or email info@overdosekits.com.

  • Reliable FYL Detection: Each test strip accurately checks for the presence of FYL and many FYL analogs, helping users make safer decisions before drug consumption.

  • Convenient 5-Pack: Comes in a pack of five individual strips — ideal for distribution, community outreach, and multiple uses. Includes micro scoop and a test receptacle for an all inclusive kit.

  • Perfect for Vending Machines: Sized and packaged to work seamlessly with naloxone vending machines, making it easier to expand harm reduction resources in your community.

  • Trusted Harm Reduction Tool: WiseBatch test strips are trusted by users and programs nationwide for quick, easy FYL screening.

  • Easy to Use Anywhere: No complicated steps — simple, fast testing that’s accessible to people with varying levels of experience.

B0HH82F4XC

5.5" L x 2.75" W x 7/8" D

  • Technical and/or procedural errors using the test, as well as other substances and unknown factors or variables may interfere with results.  
  • A positive test result indicates the presence of FYL only, and does not indicate quantity.  
  • A negative test result does not indicate that no FYL exists in the substance being tested, but only that the presence may be below the test’s detection level.  
  • Overdose Kits LLC does not encourage the production, use, supply, or distribution of illegal drugs or controlled substances in any way. This test is intended for harm reduction purposes only.  
  • A positive or negative test does not indicate that the substance being tested is safe to use. This test is not intended to determine the purity or composition of the substance being tested, or the existence of any other substance. 
  • Overdose Kits LLC cannot verify the accuracy of this test after its expiration date. Storage and procedure instructions must be followed to obtain the most accurate test result.  
  • Any substance expected to contain FYL should be treated with extreme caution as exposure to a small amount can lead to significant health-related complications, respiratory depression, or death.

Shipping

Ships from our warehouse in Anacortes, WA by UPS or USPS. Please allow 1–2 business days for processing; delivery is typically 3–7 business days.

Once your order ships, tracking information is emailed to the address entered at checkout.

Purchase orders and tax-exempt orders accepted. Request a quote or email info@overdosekits.com and we'll send you an estimate for approval.

SAM.gov Registered
UEI: JA3XNLL642J5
CAGE: 8W1R9
D-U-N-S: 12-270-5113

One Year Warranty

  • Every product we make is guaranteed for one year or we replace it.
  • 30 day free refund.
  • Must be in new condition.

Frequently Paired Together
Complete Fentanyl detection kit including the WiseBatch Harm Reduction single-use pouch, one FYL test strip, and a blue micro measurement scoop. The back of the pouch displays visual instructions and a QR code for detailed testing guidance.

Accurate FYL & Analog Detection

Designed to reliably identify FYL and multiple FYL analogs, providing dependable screening to support safer, informed decision-making.

Digital Step-by-Step Guidance

Built-in QR code connects directly to the WiseBatch app for instant video and text instructions, reducing user error and improving testing accuracy.

Illustrated instruction guide for Fentanyl (FYL) test strips. Shows the process of crushing the sample, mixing with water, and dipping the strip for 15 seconds. Includes a QR code to watch a video guide and instructions for reporting test results.
Promotional infographic for WiseBatch Fentanyl (FYL) test strips highlighting 98-99% industry-leading accuracy. Shows a hand dipping a test strip into a sample, with a golden seal of accuracy and text indicating it detects Fentanyl in pills, powders, and liquids.

Complete 5-Pack Testing Kit

Includes five individual test strips, a micro scoop, and a test receptacle, delivering an all-inclusive, ready-to-use solution for outreach or personal use.

Fast, Simple & Trusted Results

Widely used by harm reduction programs nationwide, these strips offer quick results with straightforward instructions suitable for users of all experience levels.

Box of WiseBatch Fentanyl Test Strips on a white background

Vending Machine Ready

Compact, durable packaging is optimized for Naloxone vending machines, making it easy to expand harm reduction access within communities.

Frequently Asked Questions

Everything you need to know about the FYL Test Strip Kit – Box of 5.

What’s in the box?

Five individual WiseBatch FYL test strips, a micro scoop, and a test receptacle, so everything needed to test is included.

What does it detect?

FYL and many FYL analogs.

Will it fit in a naloxone vending machine?

Yes. The box is sized and packaged to work with naloxone vending machines, making it easy to expand harm reduction access.

How big is the box?

It measures 5.5" L x 2.75" W x 7/8" D.

How do I use it?
  • Place 1 level micro scoop of finely crushed substance into the included test receptacle, an empty shot glass, or a bottle cap.
  • Add ¼ shot (5 mL) of water, or fill the bottle cap, and stir until the substance dissolves.
  • Dip the strip wavy side down, up to the MAX line, for 15 seconds.
  • Remove the strip and lay it flat for 1–2 minutes, then read the result.

Instructions are printed on each pouch, and a QR code links to detailed guides. Customers say the included micro scoop makes it simple to measure the right amount.

How fast are the results?

After dipping, lay the strip flat for 1–2 minutes, then read the result.

How do I read the result?

One line means positive. Two lines means negative. A faint second line still counts as negative.

One customer found this the opposite of what they expected and the negative line hard to see, so read the result carefully: any second line, however faint, means negative.

Can I test a patch or a blood sample?

No. The strips test a dissolved sample of a substance, prepared as described in the instructions. One customer confirmed they can’t be used to test patches or body fluids.

Who is it for?

Individuals, outreach teams, and harm reduction programs. The instructions work for people with any level of experience.

What do the results mean, and what don’t they tell me?
  • A positive result shows FYL is present, not how much.
  • A negative result doesn’t rule out FYL; it may be present below the test’s detection level.
  • Neither result means a substance is safe to use. The test doesn’t determine purity or composition, or detect other substances.
  • Technical or procedural errors and other substances can interfere with results.

The test is intended for harm reduction purposes only.

How should I store them?

Store the strips at 35–86°F (2–30°C). We can’t verify a test’s accuracy after its expiration date.

What should I do if a substance may contain FYL?

Treat it with extreme caution. Exposure to a small amount can cause serious health complications, respiratory depression, or death. Keep naloxone on hand and call 911 in an emergency.

How fast will my order ship?

10 units or fewer: fulfilled by Amazon, ships within 48 hours and arrives in 3 to 5 business days.

100 units or more: ships from Anacortes, WA via UPS or USPS. Please allow 1 to 2 business days for processing, then 3 to 7 business days for delivery.

Tracking information is emailed to the address you enter at checkout.

Is there a warranty?

Yes. Every product we make is covered by a one-year warranty. If it fails within a year, we’ll replace it.

What’s your return policy?

We offer a free refund within 30 days. The item must be in new condition.

I have another question. How do I reach you?

Send us a message using the chat button at the bottom of the page. We’ll respond the same day or sooner.

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