EM4100 125khz RFID Key Fob
Keyfob RFID Tags Card
EM4100 Badge key
EM4100 Badge key 125khz ID Keyfob RFID Tags Card
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    On prepaid orders above INR 500

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EM4100 125khz RFID Key Fob (RFID Tag)

294 In stock
Rs. 20.00 Rs. 15.00 (Exc. GST)
Rs. 15.00

A plain RFID tag key with a permanent and unique non reprogrammable 32-bit ID which can be read using a RFID reader. This Tag key works with normal 125kHz RF range and the unique ID in it can be used to identify people/objects for access control or other automation applications. It is a passive type RFID tag which means it does not have a power source attached to it. Whenever a transmitter comes into the range it will energise the coil present in the tag through Electromagnetic Induction. This energy powers the microchip inside which in turn sends a feedback response to the transmitter. The transmitter receives this unique feedback and identifies the Tag. The key is plain on both side which enables you to print your logo and other details on the tag using laser printing. It can be used in Home Automation, Identification, Anti Theft Systems, Medical Tags etc. applications.

EM4100 125khz RFID Key Fob Specifications:

  • Passive RFID Tag key
  • 32bit Unique ID
  • 64-bit data stream (Header+ID+Data+Parity)
  • Reading Distance about 5 to 12 cm (depending upon the reader)

Note: Color is only for illustrative purpose, it may be vary.


1×White RFID Tag Key

Additional Resources

RFID Tag Datasheet

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Returns Policy

Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.

1. Damaged During Shipment
If you receive a product damaged during shipment, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.

2. Wrong Item Shipped

If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.

Limitation of Returns
We don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product. Returns are accepted only with 3 days from the date of delivery.


We ship to all over India with free shipping on all prepaid orders above 500. For Cash on Delivery orders INR 80 will be charged for orders below INR 599 and INR 30 will be charged for the orders above 599. Please contact to our support team at for any question related to shipping.

Please note that the Minimum Order Value is INR 500 for COD orders.

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