--- product_id: 550057244 title: "Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K" brand: "gftvrce" price: "€ 113.92" currency: EUR in_stock: true reviews_count: 12 category: "Gftvrce" url: https://www.desertcart.hr/products/550057244-chameleon-ultra-the-last-rfid-emulator-chameleonultra-nfc-and-rfid store_origin: HR region: Croatia --- # 125KHz RFID frequency support Emulates & clones multiple RFID tags Open-source NRF52840 hardware core Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K **Brand:** gftvrce **Price:** € 113.92 **Availability:** ✅ In Stock ## Summary > 🔑 Unlock the future of RFID mastery—clone, emulate, and conquer access control like a pro! ## Quick Answers - **What is this?** Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K by gftvrce - **How much does it cost?** € 113.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/550057244-chameleon-ultra-the-last-rfid-emulator-chameleonultra-nfc-and-rfid) ## 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 - • **Compact & Portable:** Ultra-lightweight design fits in your pocket—carry your entire RFID toolkit wherever you go. - • **Effortless Cloning:** Instantly duplicate lost or multiple RFID keys—never get locked out or wait for replacements again. - • **Open-Source Powerhouse:** Built on NRF52840 with Lua scripting—customize and innovate with a thriving developer community. - • **Advanced System Testing:** Simulate diverse RFID signals and conditions to identify vulnerabilities and optimize security setups. - • **Universal RFID Emulation:** Seamlessly mimic any 125KHz RFID tag to test or bypass access controls with precision. ## Overview Chameleon Ultra is a cutting-edge, open-source RFID emulator and cloner operating at 125KHz, powered by the versatile NRF52840 chipset. Designed for engineers, security pros, and tech-savvy users, it enables seamless emulation, cloning, and testing of RFID systems in a compact, portable form factor—eliminating the hassle of lost keys and empowering advanced access control diagnostics. ## 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: A Wonderful, Spooky Little Gadget - 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. Review: LF does not read - An imitation LF antenna does not read. ## 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 | #125 in Security Access-Control Keypads | | Brand | GFTVRCE | | Brand Name | GFTVRCE | | Color | black,gold | | Customer Reviews | 3.7 out of 5 stars 53 Reviews | | Display Type | LCD | | Included Components | NFC | | Item Weight | 0.02 Kilograms | | Manufacturer | GFTVRCE | | Material | Polycarbonate (PC) | | Material Type | Polycarbonate (PC) | | Model | V0050 | | Operating Temperature | 20 Degrees Celsius | | Part Number | V0050 | | Smart Home Compatibility | Not Smart Home Compatible | ## Product Details - **Brand:** GFTVRCE - **Color:** black,gold - **Display Type:** LCD - **Item Weight:** 0.02 Kilograms - **Material:** Polycarbonate (PC) ## Images ![Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 1](https://m.media-amazon.com/images/I/51UaJCmGiWL.jpg) ![Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 2](https://m.media-amazon.com/images/I/31wMo7FtEgL.jpg) ![Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 3](https://m.media-amazon.com/images/I/61wWIjI8EPL.jpg) ![Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 4](https://m.media-amazon.com/images/I/514XQeoJppL.jpg) ![Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - Image 5](https://m.media-amazon.com/images/I/51-n5EyDlyL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ A Wonderful, Spooky Little Gadget *by J***R on August 28, 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. ### ⭐ LF does not read *by L***S on February 1, 2026* An imitation LF antenna does not read. ### ⭐⭐⭐⭐⭐ Great little device that works as advertised. *by P***H on May 13, 2025* Great little device for cloning RFID tags for building entrance entry. Updating the firmware is painless if you have the required know how. I have a proxmark3 easy and have set up ProxSpace on Windows 10 to update it and used that as a base for setting up the Chameleon environment to update the firmware of the Chameleon. This device is for those that are reasonably computer savvy. ## Frequently Bought Together - Chameleon Ultra The Last RFID Emulator ChameleonUltra NFC & RFID Key Fob Solution Opens Access Control Systems 125K - WiFi Devboard for Flipper Zero - K0R41 External CC1101 Antenna for Flipper Zero - SubGhz GPIO Board Attachment Accessory Black K0R41-CCV2 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/550057244-chameleon-ultra-the-last-rfid-emulator-chameleonultra-nfc-and-rfid](https://www.desertcart.hr/products/550057244-chameleon-ultra-the-last-rfid-emulator-chameleonultra-nfc-and-rfid) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-23*