Shelly has built a reputation for making smart home automation accessible by putting powerful, self-hosted hardware inside your existing light switches and outlets. The 1PM Mini Gen3 continues that mission, but its real advantage is packing power monitoring into a relay small enough to fit almost anywhere. This is the data point that turns a simple smart switch into an energy management tool.

You install it behind a standard wall switch or within an appliance’s junction box. The 8-amp rating means it can handle a typical lighting circuit or a small appliance like a coffee maker, but it’s not for large loads like space heaters or air conditioners. Once connected, you get precise, real-time wattage tracking through the app. You can see if you left the workshop lights on, log a fan’s energy use, or create automations that trigger based on power draw. The improved terminals make for a secure, reliable connection that won’t loosen over time.

Setup is straightforward via WiFi, and the device can extend your network or act as a Bluetooth gateway for other sensors. Just be mindful of the 8-amp limit—this is for lighting and electronics, not major kitchen appliances. For those smaller, energy-conscious automations, it delivers exceptional insight without cluttering your wall.