Since the 2000s some baby monitors also use a video camera to display images on the receiver, either by connecting it to a television or including a portable LCD screen. These surveillance cameras are often called baby monitors or cameras for babies, popularly, baby monitors.
Video monitors for babies continue to evolve and now incorporate features such as night lamps or lullabies. This is not available on all monitors. Some include thermometers and motion sensors that can be placed under the mattress, near the baby or in the crib.
Some of these monitors can work at night with very low lighting levels. Most cameras for babies have night vision. The infrared LEDs on the front of the camera allow the user to see the baby in a dark room. Baby monitors that incorporate this function will automatically activate it in the dark. Some of these devices are connected via Wi-Fi, allowing parents to monitor them from their personal computer or mobile phone.