SecurityMan SM-816DT - Manual (Page 10)

Power LED
Microphone Pair Button
6
Operation
Adding camera to SM-371DR/SM-804DR
Step 1: Press Pair button at the back of the camera as illustrated below.
Step 2: In the Menu options on receiver select Camera as shown below.
Step 3: Select Add/Remove Camera and pair it up with an UNLOCK icon
camera (1~4), as shown below.