I found some great alternatives that might interest you! For a budget-friendly option, consider the Grandstream RFID Key Fob, which is priced at just R17.79. It’s compatible with systems like the GDS3710 and USB RFID Card Reader. If you're looking for something to protect your RFID key fob, the Anti Theft RFID Carbon Fibre Waterproof Key Fob Protector Pouch is available for R110, offering both style and security. Additionally, if you require multiple cards, the 10PCS TK4100 125KHZ RFID Cards for R74 is a fantastic deal for access control systems. Let me know if you need more information or if you'd like assistance with something else!
It seems I couldn't find specific options for the Fortex45SQ Writable Key Chain Tags in my current search results. However, I do have some interesting alternatives for you! You might find the Grandstream RFID Key Fob for R17.79 a good choice if you're looking for something affordable. Additionally, the Anti Theft RFID Carbon Fibre Waterproof Key Fob Protector Pouch for R110 could provide extra protection for your keys. If you're interested in RFID cards, the 10PCS TK4100 125KHZ RFID Cards for R74 might be useful as well. If you'd like more information or have other questions, feel free to ask!