The Alarm.com ADC-VDB750 is a full HD quality wired video doorbell camera. It includes two-way audio, video analytics, improved temperature range, and a larger field-of-view. The ADC-VDB750 does not need a power module with most mechanical chimes, making for an easy install. The ADC-VDB750 offers two-way audio, a 2MP picture, and a 165° horizontal and 145° vertical field-of-view. It uses video analytics for people detection and to reduce false notifications. This is in comparison to PIR (Passive Infrared) triggered motion. People detection ensures you are notified when an actual person is detected and not from moving trees and shrubbery. It can also withstand a wider range of operating temperatures. It can operate as low as -58ºF and up to 120ºF.