IPC-T5442TM-AS only record motion for 20s?

Apr 15, 2018
14
1
Hi all, new with Dahua camera, setting to record to SD for motion only, but on my phone app (IDMSS), the recording is only shows 20s? I've stand/moving around for 2 minutes but 20s is all I've got, what settings that I need to look for to increase the recording time? thanks for any helps.