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1. These are blank tags without pre-programmed card numbers. You cannot directly add them to RFID locks or use a card reader to read them.
2. Before use, you must first write data(card numbers) into them by a 125KHz RFID card writer.
FAQ:
1. Question: Can I directly register these tags to my electronic lock? Answer: No. These tags are blank tags without pre-programmed card numbers. The electronic locks cannot write or program a blank tag. The electronic locks can read only. They read card numbers from programmed tags and then verify it Pass or not.
2. Question: Why can't I copy my old tags/cards to your tags by a card writer?
Answer: First, make sure that your card is the same RFID frequency of 125KHZ. Not all RFID cards are 125KHZ type. For example, another popular key cards use the frequency of 13.56MHZ, which is also called NFC card or IC card. Cards of different frequencies are incompatible. Second, make sure that your RFID card writer can work for the frequency 125KHZ, and that you set it in the right channel. Some RFID card writers have several working frequencies.
ETEKJOY 10 PCS Writable 125kHz RFID Key Fob Proximity ID Card Token Tag Rewritable T5577 Universal
* Note: They are blank RFID tags, no data inside. You need to write data into them to use.
* Frequency: 125kHz; Sensing Distance: 2.5 to 10 cm (1 to 4 inch); Data Storage Life: 10 Years.
* Writable & Rewritable. It can be erased and written 100,000 times. Suitable for making new and back-up tags, with the 125kHz RFID card writer/copier.
* Chip: ATMEL T5577 (compatible with other universal 125kHz tags).
* Approx Size: 1.4*1.1*0.2 inch. High-Quality Copper Coil inside. Casing Material: ABS Plastic. Waterproof & Durable.
* Package includes 10 PCS.
Georgy
August 13, 2025
They work and are very easy and quick to program, plus they are small, lightweight and come with key rings
Soupdragon
August 11, 2025
Work has HID doors and gates. It’s easier to use my little fob on my keychain than digging out my wallet.
J. Gooden
July 30, 2025
Not a single fob was writeable by two separate writers. A high-powered light shows that the coil and chip are present, but it doesn't work at all.
Robert McAlkich III
July 10, 2025
The media could not be loaded.
iHaveaProblem
June 8, 2025
TL;DR:The Writable 125kHz RFID Key Fob offers a convenient and customizable solution for access control. With its rewritable functionality and durable construction, it provides an efficient way to manage entry systems. However, it's important to note that these key fobs operate on the 125kHz frequency, which may have limitations in terms of compatibility with certain access control systems.Review:The Writable 125kHz RFID Key Fob provides a convenient and customizable solution for access control systems.One of the standout features of these key fobs is their rewritable functionality. This allows users to easily program and reprogram the fobs to suit their access control needs. Whether you need to grant or revoke access privileges, the ability to rewrite the fobs provides flexibility and convenience.The durable construction of the key fobs ensures long-lasting performance. They are designed to withstand daily use and exposure to environmental factors, making them suitable for various applications and environments.The compact size of the key fobs makes them easy to carry and use. They can be attached to keychains or lanyards, providing a convenient way to access secured areas or systems.While the Writable 125kHz RFID Key Fobs offer many benefits, it's important to note that they operate on the 125kHz frequency. This frequency may have limitations in terms of compatibility with certain access control systems that operate on different frequencies. It is advisable to check the compatibility of these key fobs with your specific access control system before purchasing.In summary, the Writable 125kHz RFID Key Fob offers a convenient and customizable solution for access control. The rewritable functionality, durable construction, and compact size make them suitable for managing entry systems effectively. However, potential buyers should consider the 125kHz frequency limitation and verify compatibility with their specific access control system.Pros:- Rewritable functionality for customization- Durable construction for long-lasting performance- Compact size for easy carrying and useCons:- Operates on the 125kHz frequency, which may have limitations in compatibility with certain access control systems
Tony
May 31, 2025
Well it works and durable. I don't have any other thing to say about them.
Lester
May 27, 2025
Perfect
Ron Burns
May 16, 2025
These little key fobs are great. They program with ease and keep on working. A better ring to attach to a key ring would be my only change. Buying in bulk ensures you no longer need to pay a conniving landlord 50.00 every time the kids lose one:)
Isaac
April 12, 2025
Entrega en tiempo y los llaveros funcionan bien para sobre escribirlos
Nick
March 26, 2025
Quick delivery, good quality. All work.
Alex
February 1, 2025
I have tried other "writable" 125hz fobs and they didn't work for me, the chip used in this worked perfect for my Keri PSK-3 style fob.
Alexandro v.
December 26, 2024
No cumple,
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