ONE All-in-One Fentanyl Detection Device
Introducing the DEFENT ONE: The World's First Fentanyl Detection Device
DEFENT ONE: A groundbreaking evolution in fentanyl detection. Built around a secure, controlled testing chamber, it redefines accuracy, precision, and portability. Compact enough to fit in your pocket, it features a measured scoop and clean water reagent for near-zero error detection. Whether at home or on the go, DEFENT ONE is more than a device — it’s a life-saving breakthrough you can hold in your hand.
Each Kit Includes:
1x DEFENT ONE Single-Use Device
1x Crush Bag • Quick Start Guide
Note: The DEFENT ONE is a single-use device and is only intended to help inform about the potential presence of fentanyl. DEFENT ONE does not determine if the substance is safe to use. Please follow user instructions for the most accurate results. Manufactured in an ISO 13485 facility.
Trust the DEFENT ONE to lead the way in Safety, Precision, and Innovation.
Pairs well with
ONE All-in-One Fentanyl Detection Device
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Minimal Steps Maximum confidence
SCOOP
INSERT
SHAKE
PULL
PUSH
See Results
Your Lifeline for Safety
Built to PROTECT
Revealing a new standard in substance safety, the DEFENT ONE is designed to help you detect the presence of fentanyl with unmatched precision. Whether you’re testing powders, pills, or other substances, this advanced tool delivers fast and accurate results, empowering you to make critical decisions confidently and responsibly.
Engineered for ease of use and portability, the DEFENT ONE is perfect for use at home or on the go. It’s not just a detection device—it’s a lifeline that helps protect you and your loved ones from the hidden dangers of fentanyl contamination.
Portable. Powerful. Reliable.
Confidence for whatever the night brings — because one smart move can change everything.
SAFETY REPORTING
Map community fentanyl hotspots safely with DEFENT's anonymous reporting tool.
DEFENT ONE
TECH SPECS
SENSITIVITY
Detects fentanyl and its analogs at concentrations as low as 15 ng/mL, ensuring ultra-sensitive detection for maximum safety and reliability
ANALOGS
Detects fentanyl and over 150 of its analogs for comprehensive substance identification.
DIMENSIONS
- DEVICE SIZE 4.9in H x 1"in D
- WEIGHT .95 Oz
PACKAGE INCLUDES
- (1) DEFENT ONE DEVICE
- CRUSH BAG
- QUICKSTART GUIDE
DEFENT ONE F.A.Q.
WHAT IS DEFENT ONE AND HOW DOES IT WORK?
DEFENT ONE is your pocket-sized protector. It spots hidden fentanyl in powders, pills, and liquids using top-tier detection tech. Just scoop, mix, and wait 3 minutes. Boom — results.
WHY SHOULD I TEST FOR FENTANYL?
Because it’s better to know than guess. Fentanyl is sneaky and deadly, showing up where it doesn’t belong. Testing with DEFENT ONE keeps you one step ahead of the danger.
HOW DO I USE DEFENT ONE?
SCOOP a sample. INSERT into the device. SHAKE. PULL. PUSH. In 3 minutes, you’ll know if it’s safe or suspect. No science degree required.
WHAT CAN DEFENT ONE TEST?
Most counterfeit pills, powders, and street substances.
HOW LONG DOES IT TAKE TO GET RESULTS?
Faster than you can scroll TikTok — 3 minutes.
IS DEFENT ONE EASY TO CARRY?
Yep. It’s small, sleek, and fits in your pocket, purse, or wherever you stash your essentials. Discreet, portable, and always ready.
IS DEFENT ONE REUSABLE?
Nope. One use, one answer. This keeps every test fresh, clean, and on point. No sketchy re-dips here.
HOW DO I DISPOSE OF DEFENT ONE AFTER USING IT?
Simple — pop it back into the resealable package it came in and toss it in the trash. No mess, no stress.
HOW ACCURATE IS DEFENT ONE?
Super accurate. It’s sensitive enough to catch as little as 10ng of fentanyl — basically, if it’s there, DEFENT ONE sees it.
WHAT HAPPENS IF DEFENT ONE DETECTS FENTANYL?
If fentanyl is detected, don't panic. Carefully dispose of the device in it's original resealable packaging and discard. Head to DEFENT's Positive Reporting Tool and anonymously report it right away. This will help those in your community be aware that fentanyl was detected in your area.
WHERE CAN I BUY DEFENT ONE?
Right here, right now. Shop online at DEFENT.com and get peace of mind shipped straight to your door. It is also available for sale on amazon.com and select retail locations.