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How Do Baby Monitors Work

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When it comes to our children, we want to do everything in our power to make sure they are safe and healthy. One way of ensuring this is by using baby monitors. With the help of the best baby monitors, you can rest assured that your child is safe and sound while you catch up on some much-needed shut-eye. But how do baby monitors work? 

In this blog article, we’ll take a look at how these handy devices can help raise children. So, whether you’re a first-time parent or just looking for a refresher course, read on to learn more about how baby monitors work!

Baby Monitor – What is it?

A baby monitor is a one-way or two-way audio or video transmitter that lets you hear or see and/or talk to your child when you’re not around.

One-way baby monitors transmit sound and video only, while two-way models also let you talk to your child. Some units even come with a nightlight or temperature sensor. Click here to check out some of the best baby monitors out there.

Importance of Using a Baby Monitors

There are a number of baby monitor benefits for which you might want to consider using a baby monitor.

For one, it can give you some much-needed peace of mind knowing that you can hear or see your child at all times. It can also be a lifesaver if you have a napping baby and need to take care of some chores around the house.

For another, you can have more sleep at night if you use a baby monitor. You do not have to worry about checking on your baby every few hours.

Additionally, it can be a great bonding tool for when daddy or mommy is away on business trips.

Types of Baby Monitors

Let’s take a look at the different types of units that are available on the market.

Analog Baby Monitors

Analog or audio baby monitors are the most basic type of baby monitor. They only transmit sound from the baby’s room to another room.

Video Baby Monitors

Both sound and video are carried by video or digital baby monitors, allowing you to see and hear your child at all times.

Two-way Baby Monitors

Two-way baby monitors allow you to talk to your kid through the receiver in addition to seeing and hearing them.

Wi-Fi Baby Monitors

Wi-Fi baby monitors use your home’s Wi-Fi network to transmit sound, video, and even data about your child’s sleep patterns or breathing.

How Baby Monitors Work

Now that we’ve looked at the different types of baby monitors, let’s take a look at how they work.

How Analog Baby Monitors Work

Audio or analog baby monitors transmit sound from the baby’s room to another using radio waves. They work with the following two components:

The Transmitter

The transmitter is a microphone placed in the baby’s room. It picks up sound from the baby’s room and sends it to the receiver through high-frequency radio waves.

The Receiver

The receiver is carried by the parent or placed in another room in the house. It amplifies the radio wave transmitted by the transmitter so you can hear your baby.

How Video Baby Monitors Work

Video or digital baby monitors are the most advanced type of baby monitor available on the market today.

They offer a number of advantages over their analog counterparts, including improved range, better signal security, and the ability to transmit video as well as audio. Hence, they are more expensive than their analog counterparts.

Video baby monitors work in the two following ways:

Audio Transmission

Both analog and video monitors transmit audio through a microphone transmitter to the receiver.

Analog monitors use a single frequency band to transmit audio, while video monitors use multiple frequency bands and employ a method known as Frequency-Hopping Spread Spectrum (FHSS).

Video Transmission

The video baby monitor transmits video to the receiver using a camera transmitter. Its FHSS transmission method helps to secure the signal and minimize frequency interference, while also facilitating video transmission.

As a result, video baby monitors are able to provide a clear and uninterrupted picture of your baby, even when they’re on the move.

How Two-way Baby Monitors Work

Two-way baby monitors are similar to video monitors, but they have one more feature that allows you to talk to your child through the receiver. As a result, they are somewhat more expensive. This is how they work:

Audio Transmission

The audio is transmitted from the microphone to the receiver in the same way as it is with video and analog monitors.

Video Transmission

The video is transmitted from the camera to the receiver using FHSS or DECT (Digital enhanced cordless telecommunications) transmission.

Two-way Communication

The receiver’s built-in speaker transmits your voice to the transmitter in the baby’s room, allowing for two-way monitoring communication.

Additional Features

The latest versions of two-way monitors provide a variety of additional functions, including heart rate monitoring, movement sensors, lullabies, night vision, and much more.

How Wi-Fi Baby Monitors Work

Wi-Fi baby monitors allow parents to keep an eye on their children from anywhere in the world, making them perfect for work and vacations. They’re connected to a home network and transmit real-time video and audio to another device, such as a smartphone, over Wi-Fi.

Here’s how Wi-Fi baby monitors work:

The Monitor

The monitor is a small, camera-equipped transmitter that is placed in the baby’s room. It connects to the home Wi-Fi router and streams live video and audio to the parent’s device.

The Parental Device

The parent device can be a smartphone, tablet, or desktop computer linked to a baby monitoring app that serves as a receiver.

The parent opens the app and logs in to their account. When they’ve logged in, if they have a decent internet connection, they can see and hear their child from anywhere around the globe.

Here are a few examples of baby monitoring apps:

Use Your Phone as a Baby Monitor

You may be wondering how to use a phone as a baby monitor now that you know how Wi-Fi monitors work.

To use your phone as a baby monitor, manage two separate devices and make sure they’re both connected to Wi-Fi. The primary device should be your phone, while the secondary device can be another phone or computer.

Place the secondary device in your baby’s room and install a baby monitor app or simply use Skype to initiate a video call.


Our children are always our first concern, regardless of what we do. It’s difficult to focus on other matters when you have a newborn at home.

So, if you’re looking for a way to give yourself peace of mind, consider purchasing a baby monitor. Now that you know how they work, it’s just more convenient for you to do so. We hope this article has given you some insight into how baby monitors work. Thanks for reading!


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