How to Spot Fake Dexcom G7 Sensors — And Protect Yourself From Scams
The Dexcom G7 is one of the most popular continuous glucose monitoring (CGM) systems in the United States. Its accuracy, comfort, and real-time glucose tracking make it a essential device for millions of people living with diabetes.
Unfortunately, the demand for G7 sensors has also led to a growing problem in the market: counterfeit Dexcom G7 sensors.
Fake sensors not only waste money — they can be dangerous, inaccurate, and even harmful to the user.
In this blog post, we’ll explain how to identify fake Dexcom G7 sensors, why they appear in the market, and how to make sure you’re dealing only with trusted buyers and sellers.
Why Fake Dexcom G7 Sensors Are Appearing More Often
Several factors have caused an increase in counterfeit sensors:
1. High resale value
Dexcom supplies maintain strong market value because of nationwide demand. This attracts scammers who try to profit by creating fake or tampered packages.
2. Online marketplaces are easy to exploit
Platforms like Facebook Marketplace, OfferUp, Craigslist, and eBay allow anyone to post items without verification. Scammers use these platforms to sell boxes that look real but contain:
Sensors that were previously used
Sensors stolen from clinics
Sensors repackaged from older lots
Sensors that are completely fake inside imitation boxes
3. Consumers often don’t know what to look for
Most buyers aren’t familiar with the small details that separate a genuine sensor from a counterfeit one.
How to Spot a Fake Dexcom G7 Sensor
Below are the most common signs:
1. Damaged or altered packaging
Genuine Dexcom G7 boxes are sealed cleanly. Watch out for:
Wrinkled or bubbly shrink-wrap
Excessively wide tape
Labels that look reprinted or peeling
2. Incorrect lot numbers or expiration dates
Real Dexcom sensors have:
Matching lot numbers on the box and inside unit
A clearly printed expiration date
Laser-printed labels, not stickers that look “cheap”
If something looks reprinted or inconsistent — it’s a red flag.
3. Missing QR code or off-center printing
Every Dexcom G7 box includes a scannable QR code for activation.
Fake boxes often have:
Crooked printing
Pixels around the edges
QR codes that don’t scan
4. Suspiciously low prices
If someone is selling G7 sensors far below the usual market range, they may be:
Expired
Stolen
Fake
Already used or repackaged
If the deal looks too good to be true — it usually is.
Why Fake Dexcom Sensors Are Dangerous
Counterfeit or reused sensors may:
Give incorrect glucose readings
Fall off early
Cause skin irritation or infection
Fail to pair with the Dexcom app
Stop working in the middle of a wear cycle
This isn’t just inconvenient — for many diabetics, inaccurate readings can be life-threatening.
How We Help Keep the Market Safe
At More Cash for Diabetic Supplies in SoCal, we work directly with trusted wholesalers and strictly follow a multi-step verification process before purchasing any Dexcom G7 sensors.
We check:
Lot numbers
Expiration dates
Box condition
Authenticity seals
QR codes
Manufacturer markings
This protects both the seller and the end user, ensuring that all products stay within legitimate supply chains.
Turn Extra Dexcom G7 Sensors Into Same-Day Cash (Safely)
If you or someone you know has extra diabetic supplies — Dexcom sensors, Libre sensors, Omnipods, or test strips — don’t let them go to waste.
Turn them into same-day cash through our trusted service:
📧 getcashfordiabeticsupplies@gmail.com
📱 (747) 242-3788
We offer:
Local pickup in Southern California
Fast, friendly service
Cash or digital payment on the spot
Nationwide shipping options
Your unused supplies can help someone else — and put money back in your pocket.
