These products don't just watch your home they help out too. Nest Cam IQ has serious processing power so it can do things like tell a person from a thing. And get intelligent alerts like when Nest Cam IQ spots a familiar face or a stranger. Speaks loudly and carries a big microphone. Nest hello doorbell is the doorbell youve been waiting for. You can get alerts whenever someone unlocks and locks the door. And when Nest knows youre away your door can lock automatically. Boost the signal of your Nest Secure system with the Nest Protect. The Nest x Yale Lock connects to the internet through Nest Connect. So you can use the Nest app to lock and unlock your door from anywhere create passcodes for people you trust and get alerts whenever someone comes and goes.