What Is a Baby Monitor and How Does It Work? A baby monitor is a gadget set that has a transmitter and receiver, which sends either sound or video (depending on the type) for the parent to be able to supervise the activities of the baby while he or she is away. There are different types of these monitors the audio, video or sensory. With this, it would be easier for you to keep an eye on the child while working. A light alarm that activates whenever it picks up sound is always a good feature of the gadget. This becomes very useful in instances wherein you might be preoccupied with loud noises in the area such as the sound of the television or vacuum. When examined by experts, these sounds can t be technically explained. But when examined by professional ghost hunters, they turn out to be ghost voices also known as electronic voice phenomenon. Baby Monitors and Interference Baby monitors can either be wired and wireless. Both types of devices have their own advantages and disadvantages. Remember to steer clear of the router's lowermost or uppermost frequency bands if you're using an analog phone that's set in 2.4GHz. 3. Opt for a wireless phone that utilizes the 900MHz, 1.9GHz or 5.8GHz band. Since these channels are not as commonly utilized as the 2.4GHz frequency band, they're less prone to interference. At daytime, a baby monitor also provides you with an enormous freedom to do other things during your baby's naptime. As a rule, you need to place the radio transmitter within 10 feet of the crib so that it can pick up even the slightest sounds made by your baby such as breathing and movement. You can then carry the portable receiver around during the day or just leave it plugged in at the side of your bed at nighttime. Some baby monitors even come with LCD screens that allow you to literally watch over your baby. This is especially valuable to deaf parents since what they lack in hearing, they can make up for in visual observation. Factors To Consider Before Purchasing A Baby Monitor Buying the most expensive baby monitor on the shelf is not necessarily the best idea that any parent could muster.