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It transmits images to the receiver when there’s a 60 meter open distance between the camera and the receiver. The pinhole security camera is typically less than 1 inch square. Color Security CameraThe color security camera captures images that help people distinguish grouped items. It’s expensive because it needs too much light to capture good images. Low light Security CameraThe low light security camera captures images in black and white. It has a large lens that allows it to get more light.emergency alarm systems
Nest Hello's app offers a head to toe view. Nest Hello features HD Talk and Listen so you can speak to whoever's outside. For those times when you're otherwise engaged, the Nest Hello app has a quick response feature, which plays a voice message. Nest touts that capability as a quick way to handle package deliveries without having to come to the door. A more clever addition to the app is a nap time feature that silences the door chime while still sending notifications to the phone. It sounds like a handy way not to be interrupted by a doorbell.