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

Electromagnetic Dual Hook Locks

DOOR WINDOW HARDWARE COMPANY
Region: Taiwan
Update: 03/25/2008
Key Specifications
1. Holding force 800kgs

2. Size 184mm(L) X 50mm (W) X 56mm (H)

3. For single swing door

4. Dual Voltage (12VDC/24VDC)

5. International patent pending

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