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What To Know Before Buying A Baby Monitor: The Frequencies And Which Ones Are Safe

With the ever-growing popularity of smart home tech, many parents are looking for ways to make their homes safer. But what should you look for in a baby monitor? Is it important to find one with a low frequency? And will radiation from a baby monitor be safe for your baby?

What are Baby Monitor Frequencies?

When buying a baby monitor, it is important to know the frequencies that the monitor uses. There are a few different frequencies that baby monitors use and it is important to know which ones are safe for your child. 

The most common frequency used in baby monitors is 2.4GHz. This frequency is safe for most children and does not carry enough energy to harm them. Some older models of baby monitors use 5GHz as their frequency, but this frequency is more likely to cause interference and should be avoided. 

If you are unsure which frequency your baby monitor uses, it is safest to check with the manufacturer. Many baby monitors now have a built-in chip that can tell you which frequency the monitor is using.

How Baby Monitors transmit signals?

A baby monitor transmits signals to a receiver, typically in the baby’s room, using RF waves. RF waves are invisible and non-ionizing radiation. They don’t travel far and don’t damage objects, but they can be absorbed by the human body. The frequencies of a baby monitor are generally safe for babies if the monitor is set up properly and used only as directed.

Baby Monitor types based on Different Frequencies

As parents we want to make sure that our babies are being safe and sound, especially when it comes to monitoring their activities. So which type of baby monitor is the safest for our little ones? Well, there are actually a few different types of monitors depending on the frequency used. 

The most common type of monitor is the RF monitor which uses radio waves to send information back to a base station. This type of monitor is generally considered to be safe because it doesn’t use any kind of radiation. However, there have been cases where this type of monitor has been known to pick up other signals such as microwaves which could potentially harm your baby. 

Another type of monitor uses optical emissions which can be seen by the naked eye. These monitors aren’t as common but they are generally considered safer because they don’t use any kind of radiation. They can still be vulnerable to other signals such as microwaves, but they are less likely to be harmful to your baby. 

The final type of monitor uses sonic waves which travel through the air and can be picked up by baby’s ears. These monitors are less common but generally considered more safe because they don’t use any kind of radiation. 

However, like with any technology, your baby could still be harmed by microwaves if they’re using the monitor near a microwave or other device that uses them. Some monitors can also pick up other signals. These can include sounds like the sound of a ringing doorbell or your door closing which could potentially harm your baby. This can be particularly dangerous to newborns because they aren’t able to understand where the noise is coming from yet.

Which Baby Monitor Frequency is Safe?

Baby Monitor

Baby monitors are a great way to keep an eye on your little one, but which frequency is safe for them? Here are the frequencies and what they mean:

GSM/2G: This frequency is used by most cell phones and some Wi-Fi routers. It’s not known to be harmful, but it may be slightly disruptive to baby’s sleep.

This frequency is used by most cell phones and some Wi-Fi routers. It’s not known to be harmful, but it may be slightly disruptive to baby’s sleep. 

3G/4G: This frequency is more common and is used by most mobile carriers. It’s generally considered safe for babies, but like GSM/2G, it can cause slight disruptions during sleep.

Wi-Fi: This is the safest option because it doesn’t use any wireless frequencies. However, it can be less reliable than phone or network connections, so use caution if using.

Examples of Baby Monitor Frequencies

When it comes to choosing a baby monitor, you have a lot of options. But before making a purchase, it’s important to understand the different frequencies and what they mean. Here are some examples: 

Frequency Range: The frequency range is the range of frequencies that the monitor can pick up. It’s usually listed in hertz (Hz). 

VHF: VHF stands for very high frequency. This type of monitor is good for monitoring larger areas, such as a whole house or a large yard. They tend to have wider frequency ranges, so they can pick up more signals than lower frequencies. 

UHF: UHF stands for ultra high frequency. These monitors are good for smaller spaces, like a single room or crib. They tend to have narrower frequency ranges, so they can’t pick up as many signals as VHF or even low-frequency monitors. 

Frequency Band: A frequency band is simply a group of frequencies that the monitor can detect. Some monitors only work with certain frequency bands. For example, some monitors only work in the 2GHz band. 

Can Baby pick up Monitors of other Frequencies?

When it comes to choosing a baby monitor, one of the most important factors to consider is the frequency of the monitor’s signal. Many parents are concerned about what frequencies their baby monitors emit and whether or not those frequencies are safe for their babies.

According to the American Academy of Pediatrics, safe baby monitor frequencies include those between 0 and 20 kHz. These frequencies are too low for babies to hear but are still strong enough for parents to hear if they are in the room with their baby. Baby monitors that emit higher frequencies, such as those in the 50-300 Hz range, may be better suited for older babies who can hear these frequencies better. However, these monitors should only be used if parents can easily keep them within reach of their babies and can ensure that they do not have any other electronic devices in close proximity to them.

What are the Side Effects of Monitors?

Baby Monitor

There are a lot of myths about baby monitors. One of the most common is that they are safe for babies. In fact, many times they are not. Monitors emit frequencies that can harm babies in several ways. They can cause sleep problems and interfere with bonding. Additionally, some monitors emit radiation which could potentially cause cancer. So, what to know before buying a monitor? Here are the frequencies that are safe and which ones to avoid: 

The frequencies allowed by most monitors fall within the range of 4kHz – 10kHz. These frequencies do not have any harmful effects on babies unless they are exposed to high levels of them. Some monitors allow higher frequencies, but these should only be used if the parent is able to stay close to the baby and can shield him or her from exposure to high levels of radiation. 

There are a few types of monitors that fall outside of these frequency ranges. These include baby GPS devices and night vision cameras/monitors. Baby GPS devices emit extremely high levels of radiation and should not be used near infants. Night vision cameras/monitors work by emitting infrared light which can penetrate walls and be seen by infants. Infants under 6 months old are especially vulnerable to the dangers of exposure to infrared light.


Buying a baby monitor is an important decision, and it’s important to do your research before making a purchase. In this article, we discuss the different frequencies that baby monitors use, what types of sensors are in common monitors, and which ones are considered safe for infants. We also provide a list of some of our favorite monitors for babies that use safe frequencies. Have you made your decision yet? Check out our selection of the best baby monitors to find out!

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