The sensor can monitor spaces up to 650 square feet with a 140-degree horizontal field of view, either perched on a shelf using its built-in stand or wall-mounted. Installation requires access to a power source for its USB-C cable, so this is not a battery-powered option.

Up to 10 detection zones can be customised independently, so a lamp can switch on only when someone sits at a desk, or a home theatre only when someone takes the sofa. Sensitivity can be adjusted to ignore low objects, so a robovac does not trigger automations, and pets can be included or excluded.

It integrates with Google Home, Apple Home, Amazon Alexa, Samsung SmartThings and Home Assistant, with Wi-Fi, Bluetooth, Zigbee and Matter support. Automations can turn lights, heating, cooling or music on when someone enters a space and off when they leave to conserve power. The launch follows Shelly's $50 subscription-free security camera last month.