---
product_id: 595719520
title: "ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K"
brand: "gftvrce"
price: "€ 165.62"
currency: EUR
in_stock: true
reviews_count: 5
category: "Gftvrce"
url: https://www.desertcart.pt/products/595719520-chameleonultra-nfc-and-rfid-key-fob-solution-opens-access-control
store_origin: PT
region: Portugal
---

# 125KHz RFID frequency support Open-source NRF52840 chipset Emulates & clones multiple RFID tags ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K

**Brand:** gftvrce
**Price:** € 165.62
**Availability:** ✅ In Stock

## Summary

> 🔐 Unlock the future of RFID control — your all-in-one key fob solution!

## Quick Answers

- **What is this?** ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K by gftvrce
- **How much does it cost?** € 165.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/595719520-chameleonultra-nfc-and-rfid-key-fob-solution-opens-access-control)

## Best For

- gftvrce enthusiasts

## Why This Product

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

## Key Features

- • **Open-Source Innovation:** Built on NRF52840, empowering customization and community-driven enhancements.
- • **Universal RFID Mastery:** Clone, emulate, and test 125KHz RFID tags with unmatched versatility.
- • **Pocket-Sized Powerhouse:** Compact 18g design fits discreetly in your pocket for on-the-go access control solutions.
- • **Future-Proof Your Access:** Test weak signals and diverse RFID protocols to optimize and secure your environment.
- • **Security & Convenience Combined:** Save on lost key fees and troubleshoot RFID systems effortlessly.

## Overview

The GFTVRCE ChameleonUltra is a lightweight, portable RFID tool designed for professionals and enthusiasts to clone, emulate, and test 125KHz RFID tags. Powered by an open-source NRF52840 chipset, it supports versatile RFID system interactions, enabling secure access management, system troubleshooting, and cost-saving replacements. Ideal for engineers, security pros, and tech-savvy users seeking a compact, powerful RFID toolkit.

## Description

Introducing Chameleon Ultra - the ultimate tool for all your RFID needs! Have you ever lost an RFID key card or fob and had to go through the hassle and expense of ordering a replacement from the manufacturer? Or maybe you've needed to create duplicates for your family or coworkers, but didn't have access to the original key card or fob? Chameleon Ultra is here to solve all these problems and more! Our small and versatile device can clone, emulate, and analyze a wide range of RFID tags and cards. With ChameleonUltra, you can create copies of RFID tags and cards, which can be used to access secure areas or equipment that require RFID authentication. You can also emulate and stores different types of RFID cards to test and troubleshoot RFID systems. And if you're responsible for maintaining the security of an RFID-based system, Chameleon Ultra can help you identify potential vulnerabilities or weaknesses. ChameleonUltra is a valuable tool for anyone working with RFID technology, whether you're an engineer, security professional, or just a curious hobbyist. And thanks to its compact and portable design, you can take it with you wherever you go! Say goodbye to the hassle and expense of ordering replacement key cards and fobs.

Review: Cute very less potential? Better to buy lilygo or flipper zero
Review: Every once in a while something comes along that gives me a chill when I think of its ramifications. This is such an object. It functions well, is so small and light you don’t even know it’s in your pocket. For those who don’t know, it basically snatches rfid codes (the kind the fob on your keychain sends to your apartment lock) and can copy them to blank fobs that can be purchased on desertcart. This can save you the Lost Key Fee your building manager will charge for replacing your lost fob, which is good, but it can also be used on the sly to steal your fob, and you may never even know it happened. It’s fun, fascinating and has multiple uses. It’s attractive and seems well made. If you’re in the market, this is a great deal from this seller.

## Features

- How ChameleonUltra works? The ChameleonUltra is a versatile RFID tool that can be used for a variety of purposes, including emulation, cloning, and testing of different RFID systems. Here's how it works
- Emulation: One of the key features of the ChameleonUltra is its ability to emulate different types of RFID tags and systems. This means that the ChameleonUltra can be programmed to behave like a specific RFID tag or system, and can be used to test and validate the behavior of other RFID readers and systems.
- To emulate an RFID tag or system, the ChameleonUltra can be programmed with specific data and commands using a programming language such as Lua. The ChameleonUltra can then transmit this data to other RFID readers and systems, which will interpret it as if it were coming from a real RFID tag.
- Cloning: Another feature of the ChameleonUltra is its ability to clone RFID tags. Cloning refers to the process of creating a copy of an existing RFID tag. This can be useful in situations where an RFID tag needs to be replaced, or when multiple copies of the same tag are required.
- To clone an RFID tag using the ChameleonUltra, the device is placed in "tag emulation mode" and is programmed to behave like the target RFID tag. The ChameleonUltra can then be used to read the data from the target RFID tag, and this data can be written onto a blank RFID tag, effectively creating a clone of the original tag.
- Testing: The ChameleonUltra can also be used to test and validate the behavior of RFID readers and systems. By emulating different types of RFID tags and systems, the ChameleonUltra can be used to test the behavior of RFID readers and systems under different conditions.
- For example, the ChameleonUltra can be programmed to emulate an RFID tag with a weak signal, or an RFID system that is operating at a different frequency. This can help to identify potential issues or weaknesses in RFID systems and can be used to optimize their performance.
- Overall: The ChameleonUltra is a powerful tool for RFID research and development, and its ability to emulate, clone, and test different RFID systems makes it a valuable addition to any RFID toolkit.
- What is ChameleonUltra from an engineer's point of view? An open-source, versatile, and portable tool using NRF52840 as the buildup of the hardware. It will carry most functions of the ChameleonMini also the ChameleonTiny and we added so much more to it to bring a whole new surprise for the open-source community.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CFJMQ58Z |
| Best Sellers Rank | #138,657 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #178 in Medical RFID Supplies |
| Color | black |
| Country of Origin | USA |
| Customer Reviews | 3.9 3.9 out of 5 stars (46) |
| Date First Available | 3 November 2023 |
| Item Model Number | V0050 |
| Item Part Number | V0050 |
| Item Weight | 18 g |
| Manufacturer | GFTVRCE |
| Operating Temperature | 20 Degrees Celsius |
| Primary material | Polycarbonate (PC) |
| Shipping Weight | 0.01 Kilograms |
| What is in the box? | NFC |

## Product Details

- **Brand:** GFTVRCE
- **Colour:** black
- **Display Type:** LED
- **Item Weight:** 0.02 Kilograms
- **Material:** Polycarbonate (PC)

## Images

![ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 1](https://m.media-amazon.com/images/I/31wMo7FtEgL.jpg)
![ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 2](https://m.media-amazon.com/images/I/41TlQA6t7hL.jpg)
![ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 3](https://m.media-amazon.com/images/I/51-n5EyDlyL.jpg)
![ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 4](https://m.media-amazon.com/images/I/514XQeoJppL.jpg)
![ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 5](https://m.media-amazon.com/images/I/51UaJCmGiWL.jpg)

## Customer Reviews

### ⭐⭐⭐ Review
*by C***H on 14 November 2025*

Cute very less potential? Better to buy lilygo or flipper zero

### ⭐⭐⭐⭐⭐ Review
*by J***R on 28 August 2025*

Every once in a while something comes along that gives me a chill when I think of its ramifications. This is such an object. It functions well, is so small and light you don’t even know it’s in your pocket. For those who don’t know, it basically snatches rfid codes (the kind the fob on your keychain sends to your apartment lock) and can copy them to blank fobs that can be purchased on Amazon. This can save you the Lost Key Fee your building manager will charge for replacing your lost fob, which is good, but it can also be used on the sly to steal your fob, and you may never even know it happened. It’s fun, fascinating and has multiple uses. It’s attractive and seems well made. If you’re in the market, this is a great deal from this seller.

### ⭐⭐⭐⭐ Review
*by A***E on 12 July 2025*

Macht was es soll👍 leider nicht alles..

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-18*