Article Summary:
While both Nest Protect (Battery) and Nest Protect (Wired 120V) have the same core features, there are a few small differences in how they are powered, report Self-Monitoring information, and connect to the Nest Thermostat.
Nest Protect (Battery)
Nest Protect (Wired 120V)
Nest Protect (Battery) updates less frequently than Nest Protect (Wired 120V) to conserve battery life.
Nest Protect (Wired 120V) updates more frequently than Nest Protect (Battery).
Power
Nest Protect (Battery) uses six long-life AA batteries for power. Batteries are designed for multi-year operation.
Nest Protect (Wired 120V) is powered by 120V wires and comes with 3 long-life AA backup batteries in case of a power outage.
Small green LED Light
Not applicable.
As required by regulations, a tiny green LED indicates that Nest Protect is connected to 120V wires.
Installation and mounting
You can install your Nest Protect (Battery) in a few minutes, without connecting any wires.
You can install your Nest Protect (Wired 120V) in a few minutes, using the included 120V connector as well as the included wire nuts.
Auto-Away and Auto-Arrival for the Nest Learning Thermostat
Nest Protect (Battery) improves the Auto-Away feature over time, so Nest Learning Thermostat has a better idea of when you’re home or away.
Nest Protect (Wired 120V) improves the Auto-Away feature so Nest Learning Thermostat has a better idea of when you’re home or away.