You can refer to the instructions below to set up the output settings via a web browser. 

Applies to: All Reolink PoE NVRs with the hardware version H3MB02/H3MB16.

Step 1. Log in to the NVR via Web Browser and go to Device SettingsDisplay Output page.

output_1.png

Step 2. You can change the output options on this tab, and click OK. The NVR will restart after you change the resolution setting.

output_2.png