https://www.asmag.com/showpost/35280.aspx
Product Info
dvr

dvr

GUARDTECH ELECTRONIC CO.,LTD.
Region: Taiwan
Update: 04/03/2009
Key Specifications
Mpeg4 compression

SD card storage

Sony sensor camera

Audio In/Out

https://www.asmag.com/project/assa_abloy_digital_access_control/index.aspx