Can you expand your baby monitor?

A PMR baby monitor is expandable, because this baby monitor communicates on an open channel. You can set the baby units to the same channel as the parent unit. This way, you can check on both your children. PRM baby monitors are very suitable for large families ore day cares, for example. You can expand them endlessly with extra baby units. As long as you're tuned into the same channel, of course.

You can expand most digital baby monitors. In many cases, these are video baby monitors for which you can buy a camera. You can place this camera in the bedroom of your 2nd, 3rd, or 4th child. Most parent units allow you to switch between the different cameras. There are even baby monitors that split the screen into 4 parts, so you can see all your children at the same time.

You can't expand DECT baby monitors. That's because they communicate via an encrypted connection. The parent unit and baby unit are tuned into each other, so you can't add an extra baby unit. The advantage is that your baby monitor is 100% secured from wiretapping. Do you have a DECT baby monitor and do you also want to check on your 2nd child with a baby monitor? That's only possible by buying an extra baby monitor.

Analog baby monitors communicate via an open channel, just like PMR baby monitors. You might here the neighbor's child, because your baby monitors are tuned into the same channel. This might suggest that you can expand the baby monitor. That's sadly not the case. The communication technology might allow it, but the manufacturer's don't. They simply don't make expansion units for this type of baby monitors. So for these baby monitors you also have to buy an extra baby monitor when you expect another child.