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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 Sticker Coin Adhesive Back T5577 Proximity ID Card Token Key Tag Rewritable Dia 25mm
Round-coin-shape sticker, with adhesive back. You can stick it on other stuff (but not metal) if necessary.
Frequency: 125kHz; Chip: ATMEL T5577 (compatible with other universal 125kHz tags); 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.
Approx Size: 25mm Diameter, 1mm Thickness. Casing Material: White PVC Plastic. Waterproof & Durable.
Package includes 10 PCS.
Why Not?
Reviewed in the United States on January 20, 2025
Got these rfid tags when I needed some stickers instead of keychain pieces, and these worked great. My only issue is that they stand out on my black phone case, but that's on me. They are plasticy on the outside, similar to a dry-erase board, so you can't color them in with a sharpie. The adhesive is great, it's held up quite well since I stuck one on my phone case a few months ago. And it hasn't not worked once. Super convenient when my phone's easier to reach than my wallet when my hands are full.
omar gonzalez
Reviewed in the United States on September 8, 2024
Very easy to program with a flipper zero
JJTP
Reviewed in the United States on August 13, 2024
I was concerned with the reviews but these work with my flipper. I wanted them to make a door key for my building and easy work they write. if you want them for a flipper no fear they work .
AJ Domador
Reviewed in the United States on June 4, 2024
I have replaced my keyfob with thisWorks like a charmAdhesion is 3M qualityEase to use write and programValue for moneyExcellent performance while approaching keyreaders
stanley c vozzella
Reviewed in the United States on November 28, 2024
Make sure you scan your fob before ordering parts. Reader will identify the correct type. I originally stuck this on my phone to test and worked fine. Made a small recess in my case on the inside near the camera with a burr grinder and did a hidden install. Still working the same. Nice when you have your phone and don’t want to take a set of keys. Very low profile and adhesive is aggressive if you just want to go the easy route.
hussain
Reviewed in the United States on November 27, 2024
It does not work for the rfid on a talaria ebike
pixseal
Reviewed in the United States on October 14, 2024
I placed one of these in my phone case and now my phone replaces my RFID fob.
IKK Yeung
Reviewed in Singapore on July 15, 2023
Works perfectly for one access card. (older access system).Our other access card seems to have a more sophisticated technology.The writeable stickers do not work for that system.
SuperSteve
Reviewed in the United States on December 30, 2023
I purchased these because I got tired of carrying around my key fob. I was trying to minimize my EDC. I figured I always carry my phone so it would be great if I could dump the fob for something I could stick in my phone case. The maintenance guy at my building claimed they could only do the HID brand fobs. So using some equipment my friend had I copied my fob and wrote it to this coin. It worked perfectly. No more fob! My only gripe is these are a tad thick. They won't work in most phone cases. I did manage to get it to work with one of my 3 cases. The adhesive is strong but not strong enough to just stick to the outside of something like a phone that's always in use.
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