https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
58kHz AM/8.2MHz RF/Combo Shell Tag

58kHz AM/8.2MHz RF/Combo Shell Tag

Tag Company International
Region: United Kingdom
Update: 11/22/2006
Key Specifications
- Acousto-magnetic and ink tag protection combined

- Reusable tags made of fire retardant plastic

- Extra strength lock with encapsulated three ball locking mechanism

- Strong construction made of scratch and tamper resistant material

- Simple to attach and easily removed with a special detacher

- Wide detection range w/ 58 kHz

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions