---
product_id: 245641160
title: "Fentanyl Test Strip Kit for Liquid and Powder Substances - 5 Test Strips per Kit - BTNX Rapid Response Forensic Kit"
brand: "rapid response"
price: "€ 51.08"
currency: EUR
in_stock: true
reviews_count: 8
category: "Rapid Response"
url: https://www.desertcart.sk/products/245641160-fentanyl-test-strip-kit-for-liquid-and-powder-substances-5
store_origin: SK
region: Slovakia
---

# 98%+ accuracy Detects 10+ fentanyl analogues Results in minutes Fentanyl Test Strip Kit for Liquid and Powder Substances - 5 Test Strips per Kit - BTNX Rapid Response Forensic Kit

**Brand:** rapid response
**Price:** € 51.08
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay ahead, stay safe—because your peace of mind can’t wait.

## Quick Answers

- **What is this?** Fentanyl Test Strip Kit for Liquid and Powder Substances - 5 Test Strips per Kit - BTNX Rapid Response Forensic Kit by rapid response
- **How much does it cost?** € 51.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/245641160-fentanyl-test-strip-kit-for-liquid-and-powder-substances-5)

## Best For

- rapid response enthusiasts

## Why This Product

- Trusted rapid response brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Kit:** Complete with 5 test strips, swabs, extraction liquids, and easy-to-follow instructions for hassle-free testing.
- • **Compact & Portable:** Lightweight 2.4 oz kit fits perfectly in your bag or lab, empowering on-the-go safety decisions.
- • **Comprehensive Screening:** Detects fentanyl and over 10 analogues including Carfentanil and Acetyl Fentanyl for thorough safety checks.
- • **Rapid, Reliable Detection:** Get accurate fentanyl presence results in just minutes with >98% accuracy.
- • **Clear, Unambiguous Results:** Simple line-based readout ensures you never second-guess—one line means positive, two lines negative.

## Overview

The Rapid Response Fentanyl Test Strip Kit offers fast, highly accurate (>98%) detection of fentanyl and multiple analogues in powders and liquids at a 200 ng/mL cutoff. Designed for professionals and safety-conscious users, this compact kit includes 5 tests with all necessary components and delivers clear, easy-to-interpret results within minutes, helping you make informed decisions with confidence.

## Description

The Rapid ResponseTM Fentanyl (FYL) Forensic Test Kit is a lateral flow chromatographic immunoassay for the qualitative detection of Fentanyl in liquid and powder substances at the cut-off concentration of 200 ng/mL.

Review: Product as described!! - Product as described!!!
Review: Works, maybe? - Either the stuff I test if from good sources or it doesn't work at all. Regardless, i choose to go with the first one as everyone is alive and well!

## Features

- The Rapid Response Fentanyl (FYL) Forensic Test Kit detects for the presence of Fentanyl in liquid and powder substances at the cut-off concentration of 200 ng/mL. It is specific for Fentanyl screening with no significant cross reactivity to other opiates, such as Morphine and Heroin.
- Interpretation of test results are: positive (one line), negative (two lines), invalid (no lines or no control line).
- Kit contains: 5 Fentanyl test strips, 5 swabs, 5 test tubes, 5 bottles of extraction liquid, a test tube holder, instructions and product insert.
- The Rapid Response Fentanyl (FYL) Forensic Test Kit is able to detect Fentanyl and many other Fentanyl analogues such as Carfentanil, Acetyl Fentanyl, Butyryl Fentanyl, Remifentanil, Ocfentanil, Sufentanil, p-Fluoro Fentanyl, Furanyl Fentanyl, Valeryl Fentanyl, and 3-Methyl Fentanyl.
- Accuracy: > 98%, Results in minutes
- WARNING: THIS TEST DOES NOT EVALUATE DRUG SAFETY OR PURITY.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B08KKDY1QV |
| Best Sellers Rank | #211,818 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #319 in Clinical Diagnostic Test Kits |
| Customer Reviews | 4.3 4.3 out of 5 stars (311) |
| Date First Available  | November 6, 2020 |
| Item model number  | FYL-18S7-5 |
| Manufacturer  | BTNX |
| Product Dimensions  | 6 x 4 x 3 inches; 2.4 ounces |

## Product Details

- **Brand:** Rapid Response
- **Number of Pieces:** 5
- **Special Feature:** Quick Testing
- **Test type:** ["munoass"]

## Images

![Fentanyl Test Strip Kit for Liquid and Powder Substances - 5 Test Strips per Kit - BTNX Rapid Response Forensic Kit - Image 1](https://m.media-amazon.com/images/I/71-+QxqK-ML.jpg)

## Questions & Answers

**Q: What is extraction liquid and why can’t I just use regular bottled water to dissolve the powder I’m testing?**
A: Hi there, here is what is in the buffer solution:

Phosphate buffered saline
Tween 20
Sodium azide
The buffer solution is critical to the accuracy of the test as water has containment’s which may alter the accuracy and read of the test.

**Q: Can you test for fentanyl in marijuana with it?**
A: Our kits are mainly used for testing powder substances for fentanyl as it is mostly mixed there, but yes, you will be able to detect fentanyl in marijuana as well. Please, just follow carefully the instructions and feel free to do the test.

**Q: Can I crush a OxyContin pill into powder and test it with this test?**
A: Yes, you can test any powder and substance with this test kit

**Q: is this a urine test?**
A: No, this test is not for testing urine. This test is used for testing liquid and powder substances for Fentanyl and many other Fentanyl analogues.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Product as described!!
*by E***. on February 25, 2025*

Product as described!!!

### ⭐⭐⭐⭐⭐ Works, maybe?
*by C***T on June 10, 2023*

Either the stuff I test if from good sources or it doesn't work at all. Regardless, i choose to go with the first one as everyone is alive and well!

### ⭐⭐⭐⭐ i hope its accurate and really works
*by Z***R on July 20, 2021*

if someone you love is using something , the minimum you can do is to make sure it doesn't have this substances in it . you can save someone's life !. pills or different drugs is getting mixed with this substance to reduce costs and its lethal . people are dying every day ! now to the product , I really really hope that its working and effective as it states it does .

## Frequently Bought Together

- Fentanyl Test Strip Kit for Liquid and Powder Substances - 5 Test Strips per Kit - BTNX Rapid Response Forensic Kit
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**Shop now:** [https://www.desertcart.sk/products/245641160-fentanyl-test-strip-kit-for-liquid-and-powder-substances-5](https://www.desertcart.sk/products/245641160-fentanyl-test-strip-kit-for-liquid-and-powder-substances-5)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-08*