Look for a monitoring system that is a good fit for your home and lifestyle. For example, if you’re in a small apartment in a busy city, having a monitor that has a long range won’t be as important to you, but one that screens out background noise will. For parents that frequently travel or work long days, being able to check on your child from anywhere and talk over the audio can help keep you connected. But, for those who are with their kids most of the time this might not matter much. The point is, consider what will make parenting easier and your family happiest and you can’t go wrong.
Start by deciding whether you want an audio-only monitor or one that lets you see as well as hear your baby. Some parents are reassured by hearing and seeing every whimper and movement. Others find such close surveillance to be nerve-racking. Having a monitor should make life easier, not create a constant source of worry. You might find that you don't really need a monitor at all, especially if your home is small.
You might prefer one that has lights as well as sound. All the audio monitors we rated had this feature. The Philips Avent DECT SCD510, which sells for about $120, has a series of small LED lights on the parent monitor. The louder the sound in your baby's room, the more lights go on, so you'll notice his crying even with the unit set on mute. Audio monitors are generally less expensive than audio/video models.
Wireless encryption: This ensures that no one else can tap into your monitor’s “feed” and see what’s going on in your house. WiFi-enabled monitors are great for portability and range, but may be more susceptible to hacking. If you go this route, be sure to secure your home wireless network and keep the monitor’s firmware updated. Otherwise look for digital monitors with a 2.4 GHz FHSS wireless transmission.