Using the buttons, you can swivel the DXR-8's camera (so you can eyeball more of the room) and zoom in close. It actually comes with two interchangeable lenses – a standard and a zoom lens – and you can also buy a separate Infant Optics Wide Angle Lens (Est. $12), all of which can be used with the zoom button. This gives you lots of flexibility when deciding where to mount your camera, Baby Bargains points out. "Depending on the configuration of your nursery, your only option may be to put the camera on a dresser across from the crib -- then the normal lens might do. But if you mount the camera on a wall above the crib, the zoom lens might be better." Later, if you use the monitor in a toddler's room or playroom, the wide-angle lens might be the best choice.
Range of signal: Some baby monitors have better range than others. If you live in a big house with multiple rooms, range will be a key consideration for you. Anyone who lives in a single-story house or a smaller apartment may not need as much range. Many baby monitors have an alert when you get out of range, and the packaging typically gives you an estimate of the range. Bear in mind that range varies widely from home to home. The construction of the walls between you and the baby monitor may even limit the range.
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.