Before the days of baby monitoring, parents simply pressed their ears to the walls and hoped for the best. It made them worry. Things were different once baby monitors came on the scene, especially for parents who were already wondering whether they really need a baby monitor to feel more at ease when their baby is sleeping in another room.
But when were baby monitors invented? In this article, we will discuss how they have evolved, why they are important for your baby’s safety, and the best baby monitors to watch out for in 2026.
Baby monitors have been around since 1937. The first introduced is the Zenith Radio Nurse. The concept emerged following the tragic Lindbergh baby abduction, raising parents’ awareness of the importance of protecting their kids.
Eugene McDonald, the head of the Zenith Radio Corporation, desired a device that would enable him to hear his child from another room. He applied radio technology to develop the first monitor and partnered with Isamu Noguchi to create the end product.
Because of this work, the first non-visual baby monitor was developed. It relied on basic radio signals to transmit the sound from your baby's room to a receiver. It was a big step forward, and made parents feel comfortable despite being far.
Baby monitors started as basic listening devices and have grown into smart tools that help parents see, hear, and track their baby easily. See how baby monitors have improved over time.
|
Time Period |
What Changed |
What It Meant for Parents |
|
1937 (First Monitor) |
The Zenith Radio Nurse used basic radio signals to send sound. |
Parents could hear their baby from another room for the first time. |
|
1940s-1970s |
New ideas like safer signal tech and early breathing monitors were explored. |
Monitors slowly became more reliable and focused on safety. |
|
1990s (Video Era) |
Video monitors and “nanny cams” became popular. |
Two-way talk was introduced. Parents could see and talk to their baby, not just listen. |
|
2000s-Present (Digital & Wi-Fi) |
Digital signals, Wi-Fi, HD video, and night vision were added. |
Clearer sound, better security, and remote viewing through phones. |
The first baby monitor was inspired by the tragic Lindbergh baby kidnapping. In 1932, the young son of Charles Lindbergh was abducted from his home. There were people in the house then. The case horrified the nation and focused attention on the safety of children.
That disturbing event gave birth to an idea in the mind of Eugene McDonald, president of Zenith Radio Corporation. As a concerned father, he was motivated to find a way to protect his child and be able to hear his daughter from another room. After watching it operate, he felt every parent should be able to have that peace of mind. This is how the first baby monitor came to be.
Baby monitors started as simple one-way audio devices. Later, it improved in reliability and safety with better signals. By the 1970s, monitors could let parents talk back and even alert them to breathing problems. This sets the stage for modern and high-tech baby monitors.
|
Period |
Key Changes |
Impact for Parents |
|
1937 (Zenith Radio Nurse) |
-1st baby monitor with analog audio and one-way communication -Expensive -Signal issues |
-Could hear the baby from another room -Limited use due to cost and interference |
|
1940s-1960s (Analog Expansion) |
-More analog monitors -Low-frequency signals (27–49 MHz) -Basic transmission |
-Worked even with weak signals -Interference common -Only one channel at a time |
|
1941 (FHSS Concept) |
-Developed by Hedy Lamarr and George Antheil -Secure signal switching |
-Not used yet in baby monitors -Later improved safety and privacy |
|
1970s (Safety Features) |
-Two-way communication (1974) -Breath monitoring device (1979) |
-Parents could talk to the baby -Has alerts for breathing issues -Better safety and response |
Have you ever wondered how parents first began watching over their babies from another room? In the 1990s, video baby monitors surged in popularity as cameras allowed parents to check in on their children from afar. Plus, news coverage of caregiver abuse made these new “nanny cams” an essential tool for peace of mind.
As technology developed, monitors began employing Wi-Fi, DECT, and FHSS technology. They stopped using outdated analog signals by the early 2000s. This resulted in a more dependable and safer audio and video.
Based on these enhancements, during the 2010s, Wi-Fi monitors became less expensive and more mainstream. Well-known models provided high-quality video and sound, and a growing number of monitors integrated with smart home platforms such as Apple HomeKit, Amazon Alexa, and Google Home. That way, parents could easily watch and interact with their babies using apps and smart devices.
Today, baby monitoring is so much more than just listening. Now they feature video, smart technology, health tracking, and alerts that let parents breathe a little easier and care for their babies safely.
With the advancement of technology, more progress was made with smartphone integration. Many of today’s models connect to mobile apps, enabling parents to watch live video, receive alerts, and change settings from their phones. You can also monitor the temperature and humidity in the room, play lullabies, and even keep track of your baby’s sleep and health.
There are several different types of baby monitors now available, which is why understanding how to find the best baby monitor for your little one matters more than ever before, when choosing between audio, video, and smart options.
|
Type of Monitor |
What It Does |
|
Digital & Wireless |
Uses Wi-Fi, DECT, or FHSS for clear audio/video |
|
Video Monitors |
Lets parents see their baby with HD video, night vision, and remote pan/tilt |
|
Two-Way Communication |
Let parents talk to their baby through the monitor |
|
Smart Monitors |
-Connects to smartphones and smart home systems -Some have AI to track sleep and movement |
|
Wearable Monitors |
Attach to your baby’s clothing to track heart rate, oxygen, and movement |
|
Movement & Breathing Monitors |
Detects your baby’s movement and breathing patterns |
|
Nursery Temperature Monitors |
Measures your baby’s room temperature |
Baby monitors have evolved a lot over the years, but their main purpose remains the same: to help parents hear and check on their baby while still leaving room for healthier routines around helping your baby sleep independently as they grow. The future looks bright, with the market expected to grow about 8.4% by 2026.
Key reasons for this growth:
One thing is for sure: baby monitors will continue to get smarter, more popular, and more essential for modern parenting.
In 2026, Momcozy stands out for its tools’ advanced features and reliable performance, setting a new standard in baby monitoring.
A good monitor like the Momcozy 5-Inch Dual-mode Smart Baby Monitor (BM04) will take you to new heights. With two cameras and a 5-inch screen, you can see your baby through the app or parent unit anytime.
|
Rating |
Price |
Features |
|
5/5 |
$219.99 |
-Control from your phone or parent monitor -Secure video feed -Instant movement notifications -Capture video automatically or manually -Set your own safety area -Alerts when your baby cries -Connect up to four cameras -Two-way communication |
You can view other monitors from Momcozy baby monitor collection. For other baby essential needs, look at Momcozy nasal aspirator collection.
Baby monitors have come a long way since their invention in 1937. They evolve from simple audio devices into smart, connected tools that help parents see, hear, and understand their baby’s needs.
From video monitoring to smartphone integration, each step has made parenting safer and more convenient. As technology continues to improve, baby monitors will only become smarter and more essential. Thus, giving parents greater peace of mind every day.
The information provided in this article is for general informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider regarding any medical condition. Momcozy is not responsible for any consequences arising from the use of this content.
