https://www.asmag.com/project/micron_edge_storage_for_video_security/
Product Info
PH301 3IN1 ELECTRONIC LOCK

PH301 3IN1 ELECTRONIC LOCK

UEI HAUR ENTERPRISE CO., LTD
Region: Taiwan
Update: 03/06/2020
Key Specifications
CARD, DIGITS, AND MANUAL KEY, 3 WAY TO OPEN THE DOOR.

USE 4 BATTERY ONLY

WHEN LOW BATTERY, USE 9V EXTERNAL BATTERY FOR POWER SUPPLY TEMPORARILY TO OPEN THE DOOR.

https://www.asmag.com/project/the_manpower_survey/