How long can 1TB hard drive record? Andy July 23, 2019 02:43 Updated Follow Applies to: DH81NK/DH41NK/DM21O/DM31O/DL81A/DH81S/DH81NG/DN81NB/DM41G/DN41CJ/DN81BJ/DN61EC/DG81W/DG61X/DG41T/DT81DQ/DT41DC/DT61ER/DG41BE/DG81BE 24 hours non-stop recording It is for reference only. It also depends on the DVR set. Related articles How long can 1TB hard drive record? Compatible HDD List for DVR/NVR What to do if DVR or NVR can't connect to internet successfully ?（XM） DN41R-DN81R-DN61R User Manual How to upload video to FTP? Comments 0 comments Article is closed for comments.