---
product_id: 280744513
title: "MENGQI-CONTROL Blue 100pcs 125Khz Proximity ID Card Chip TK EM 4100 RFID Tag Key Fob Keyfobs Keychain Ring Token for Access Control"
brand: "mengqi-control"
price: "$U5322"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/280744513-mengqi-control-blue-100pcs-125khz-proximity-id-card-chip-tk
store_origin: UY
region: Uruguay
---

# 5-10cm range 100pcs bulk Read-only security MENGQI-CONTROL Blue 100pcs 125Khz Proximity ID Card Chip TK EM 4100 RFID Tag Key Fob Keyfobs Keychain Ring Token for Access Control

**Brand:** mengqi-control
**Price:** $U5322
**Availability:** ✅ In Stock

## Summary

> 🔑 Unlock the Future of Access Control!

## Quick Answers

- **What is this?** MENGQI-CONTROL Blue 100pcs 125Khz Proximity ID Card Chip TK EM 4100 RFID Tag Key Fob Keyfobs Keychain Ring Token for Access Control by mengqi-control
- **How much does it cost?** $U5322 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/280744513-mengqi-control-blue-100pcs-125khz-proximity-id-card-chip-tk)

## Best For

- mengqi-control enthusiasts

## Why This Product

- Trusted mengqi-control brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast Shipping:** Get your tags delivered in just 6-9 days!
- • **Bulk Convenience:** 100 pieces to ensure you never run out.
- • **Effortless Access:** Detecting distance of 5-10cm for quick entry.
- • **Unmatched Security:** Protect your access with read-only RFID technology.
- • **Compatibility Caution:** Designed for specific readers; check compatibility.

## Overview

The MENGQI-CONTROL Blue RFID Tag Key Fob is a set of 100 read-only proximity ID cards operating at a frequency of 125KHz. Designed for secure access control, these tags have a detecting distance of 5-10cm and are not compatible with UHF or encrypted readers. Enjoy fast shipping to the USA in just 6-9 days!

## Description

MENGQI-CONTROL Blue 100pcs 125Khz Proximity ID Card Chip TK EM 4100 RFID Tag Key Fob Keyfobs Keychain Ring Token for Access Control

## Features

- Read only, Can not be programmed.
- Can't compatible with UHF reader and encrypted readers, for example,HID,Cobra,APCiK,Paradox,Radio,Honeywell,Kaba,Isonas,etc
- Response frequency: 125KHz. We will do express shipping to you, take 6 9 days normally to USA.
- Chip type: EM ID 4100/4102 (Only Read)
- Detecting distance: 5 10cm.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Control Method | Remote |
| Maximum Range | 0.1 Meters |
| Sensor Technology | RFID |
| Connectivity Technology | RFID |
| Power Source | None" or "Not Applicable |
| Item Weight | 2 Pounds |
| Unit Count | 100.0 Count |
| Color | Blue |

## Images

![MENGQI-CONTROL Blue 100pcs 125Khz Proximity ID Card Chip TK EM 4100 RFID Tag Key Fob Keyfobs Keychain Ring Token for Access Control - Image 1](https://m.media-amazon.com/images/I/61GDkJrvioL.jpg)
![MENGQI-CONTROL Blue 100pcs 125Khz Proximity ID Card Chip TK EM 4100 RFID Tag Key Fob Keyfobs Keychain Ring Token for Access Control - Image 2](https://m.media-amazon.com/images/I/51P42jGPBPL.jpg)
![MENGQI-CONTROL Blue 100pcs 125Khz Proximity ID Card Chip TK EM 4100 RFID Tag Key Fob Keyfobs Keychain Ring Token for Access Control - Image 3](https://m.media-amazon.com/images/I/51ouAFL2dnL.jpg)
![MENGQI-CONTROL Blue 100pcs 125Khz Proximity ID Card Chip TK EM 4100 RFID Tag Key Fob Keyfobs Keychain Ring Token for Access Control - Image 4](https://m.media-amazon.com/images/I/517sT9ifsdL.jpg)

## Questions & Answers

**Q: Works with paradox?**
A: no，it's em rfid type

**Q: I just bought your 4 door system that came with 50 fobs, if i purchase these fobs will they be different id numbers from the ones i got in the kit?**
A: it's different, each fob has unique number

**Q: I have an existing access system that uses hid fobs, can i use these fobs on that system and do they have numbers on them to assign to people?**
A: If you already own the controller for these FOBs you should be able to add other controllers and use additional FOBs by the same manufacturer. One FOB can active other controllers as well. You just program them.

**Q: Are they sequentially numbered with the numbers on the outside?  Any different colors available?**
A: number is unique, but not sequentially

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**Shop now:** [https://www.desertcart.uy/products/280744513-mengqi-control-blue-100pcs-125khz-proximity-id-card-chip-tk](https://www.desertcart.uy/products/280744513-mengqi-control-blue-100pcs-125khz-proximity-id-card-chip-tk)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-27*