Wireless systems use radio frequencies that are designated by governments for unlicensed use. For example, in North America frequencies near 49 MHz, 902 MHz or 2.4 GHz are available. While these frequencies are not assigned to powerful television or radio broadcasting transmitters, interference from other wireless devices such as cordless telephones, wireless toys, computer wireless networks, radar, Smart Power Meters and microwave ovens is possible.
Another big plus? Its "basic but secure" radio frequency (RF) connection, Wirecutter says. Unlike monitors that transmit via Wi-Fi (and can be hacked from virtually anywhere on Earth), the DXR-8 is pretty hack-proof. It uses a 2.4 GHz FHSS (Frequency Hopping Spread Spectrum) signal. Long story short, a hacker would pretty much have to be in the apartment next door, using just the right listening equipment to eavesdrop on your baby, tech journalist Carl Franzen explains at Lifehacker. He goes on a personal quest to find a hack-proof baby monitor before the birth of his first child – and settles on the DXR-8.
Winner of this year’s JPMA innovation award for safety, the Nanit Smart Baby Monitor is an over-the-crib Wi-Fi video monitor that uses computer vision technology to track a baby’s sleep habits/patterns and provide data-crazed parents with stats and customized sleep tips in the morning, most of which are written by medical professionals. The only catch is that to receive these reports and tips, you need to pay $100 a year for Nanit Insights, the company’s subscription-based service. For parents who’d rather not pay the monthly fee, Nanit is still a sleek HD video monitor with night vision, one-way audio, and a soft glow LED nightlight.
The video on its handheld unit is sharp and consistent, and even with 30 feet between the camera and the handheld unit, there wasn’t lag or interruption in the video. In addition, you can use the handheld unit to remotely point the camera at different parts of the room. Although you can't record video or take pictures with the DXR-8, these aren’t important features for a baby monitor. Setup is incredibly easy. After charging the handheld unit overnight, we plugged in the camera and it instantly connected. There was a slight lag in the video when the camera and handheld unit were 50 feet apart, which is why it only scored 90 percent in our connection test, but that’s still better than other baby monitors we reviewed. In our battery life test, the monitor lasted 10 hours – only one other model has a battery that lasts this long. This video baby monitor doesn't have Wi-Fi, but that's not a problem. Our top Wi-Fi monitor, the Philips Avent, is more expensive and didn't perform as well as the DXR-8 in our tests. This baby camera has swappable lenses for telephoto and wide-angle views. It also has invisible infrared LEDs that let you see your baby in complete darkness without waking them. The DXR-8 doesn't have a nightlight or lullabies to comfort your baby, but those exclusions don't make this baby monitor any less impressive. The warranty on the DXR-8 only lasts a year, compared to the two-year warranty on the Philips Avent.
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.