125KHz RFID Card Tag - Pack of 10 (EM4100)
125KHz RFID Card Tag - Pack of 10 (EM4100)
A pack of ten 125KHz proximity RFID card tags (EM4100-compatible), each with its own read-only UID. The practical choice for classrooms, labs, and multi-user access or attendance projects where you need a card per person.
Compatible with
- 125KHz readers such as the JT308, RDM6300 and EM-18
- Arduino, ESP32 and Raspberry Pi via a 125KHz reader module
Build it with Compoden's AI
Pairing a tag with the right reader and code trips up a lot of first builds. Describe your access-control or attendance project to Compoden's AI build assistant. It matches the tag to a compatible reader at the same frequency, checks every part against real stock, and hands you the wiring and the code.
Built and Backed by Compoden
We have spent 10 years supplying RFID, electronics, and robotics parts to makers, schools, and access-control projects across India. Every Compoden order includes our AI build companion to help you wire the reader, write the code, and get the tag reading on the first try.
How many cards are included?
Ten 125KHz EM4100 cards, each with a unique read-only UID.
Are these the same as the single card tag?
Yes, the same 125KHz card in a pack of ten for multi-user builds.
Do they work with a 13.56MHz reader?
No - these are 125KHz; the MFRC522 and other 13.56MHz readers will not read them.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items