Shelly 1PM Mini Gen3 x2 Review: Dual Relay Power Monitoring for Smarter Control

Controlling two separate electrical circuits often meant installing multiple relays or cluttering the breaker panel. The Shelly 1PM Mini Gen3 x2 changes that by packing two independent relays with per‑channel energy monitoring into a single, compact unit. Whether you’re automating lights, pumps, or small appliances, this dual‑channel design saves space and wiring time while giving you granular insights into power consumption.

In this review, we’ll look at its key features, installation process, real‑world performance, and how it fits into a broader smart home ecosystem. We’ll also compare it with single‑channel alternatives and show you practical use cases that make the most of its dual‑relay architecture.

What is the Shelly 1PM Mini Gen3 x2?

The Shelly 1PM Mini Gen3 x2 is a two‑pack of the popular Shelly 1PM Mini Gen3, each unit containing one relay with energy monitoring. What makes this bundle special is the cost and convenience: you get two independently controllable relays that can handle up to 10 A per channel (resistive), perfect for lighting circuits, garage doors, or any 230 V load that needs both control and consumption tracking.

Each relay supports Wi‑Fi and Bluetooth connectivity, upgrades to Matter for cross‑platform compatibility, and integrates seamlessly with the Shelly Smart Control app. The compact form factor (about the size of a matchbox) allows it to fit behind wall switches, inside appliance housings, or in small junction boxes.

• Two independent relays in a single purchase – lower cost than buying two separate units.
• Real‑time power, energy, and voltage monitoring per channel via the app.
• Supports cloud and local control (CoAP, MQTT, HTTP, WebSocket).

Energy Monitoring: See Every Watt

One of the standout features of the Shelly 1PM Mini Gen3 x2 is its built‑in power metering. Unlike basic relays that just switch on/off, this device shows you exactly how much electricity each load is drawing. View real‑time wattage, daily/monthly kWh totals, and even current in amps – all from the Shelly app or your dashboard.

This granular data helps you identify energy‑hungry devices, schedule them to run during off‑peak hours, or set up alerts when consumption spikes. For example, you can pair one relay with a water heater and the other with a pool pump, then track their individual usage without extra hardware. For even more detailed appliance tracking, consider adding the Shelly Plug M Gen3 Black to monitor a single device right at the outlet.

Installation and Wiring Tips

Installing the Shelly 1PM Mini Gen3 x2 is straightforward for anyone comfortable with basic electrical work. Each unit requires a live, neutral, and load connection. The relay is designed to fit behind standard single‑gang wall switches, but you can also mount it in a distribution box using the included screws. The bundled design means less wiring clutter than two separate devices.

Important: Always disconnect power before installation. Use the decoupler (available if your switch uses a different phase) to avoid interference. For best results, connect neutral wires properly – the energy monitoring function requires a neutral reference. Once wired, the device auto‑connects to the Shelly app via Bluetooth for a quick setup.

• Tip: Label each relay channel in the app (e.g., “Lights – Living Room” and “Fan”) to avoid confusion.
• If you need professional installation for a large project, the Shelly Pro 4CB C10A offers four channels of 10 A relays with built‑in energy monitoring in a DIN‑rail format.

Smart Home Integration and Automation

The Shelly 1PM Mini Gen3 x2 works with all major smart home platforms thanks to native Wi‑Fi and Bluetooth support. With the free Matter upgrade, it becomes compatible with Apple Home, Google Home, Amazon Alexa, and Samsung SmartThings – no hub required. You can create powerful automations: turn off both relays when you leave home, or trigger one relay based on the status of a sensor.

For advanced users, the device exposes a rich set of APIs for local scripting using Shelly Script (JavaScript). You can write custom logic to, for example, turn off a pump if energy consumption exceeds a threshold, or log data to an MQTT server for home assistant integration. The dual‑relay nature doubles your automation possibilities in one device.

The Shelly 1PM Mini Gen3 x2 delivers excellent value for anyone needing to control and monitor two circuits independently. Its compact size, robust energy metering, and Matter support make it a future‑proof choice for both beginners and advanced smart home enthusiasts. If you’re upgrading a single appliance or want to start small, pair it with the Shelly Plug M Gen3 Black for full visibility into every device. Explore how these two products can work together to bring intelligence and efficiency to your home.