Shelly 2PM Gen3 WiFi 2-Channel Smart Relay Switch - Power Metering

In this review of the Shelly 2PM Gen3 the bottom line is straightforward: it is a compact, capable smart relay for homeowners and installers who want independent control and power metering for two circuits on a single phase. The reviewer found it especially useful where space is limited but monitoring and automation matter, because the device combines two-channel switching, per-channel metering and a Bluetooth gateway in one module. Setup can be straightforward for those comfortable with wiring and smart home apps, and the power metering is the single biggest reason to choose this unit over a simple two-relay module.

Key Features

• Dual channel relay: Controls two independent loads from one device so you can automate separate lights, blinds or motors on the same phase.
• High load capacity: Each channel supports up to 16A, making the unit suitable for heavier loads and bi-directional motor control.
• Built-in power metering: Monitors energy consumption per channel so you can track and manage usage for each connected appliance or light.
• Bluetooth gateway: Adds local connectivity options and helps integrate the device into a broader smart home network.
• Multiple control methods: Operate devices via manual switch, mobile app, home automation systems or voice assistants for flexible control.
• Scheduling and scenes: Use the companion app to create timed events such as automated curtain or shutter routines.

Who It's For

The Shelly 2PM Gen3 is best for homeowners, hobbyist electricians and small office managers who need per-channel power monitoring and reliable two-circuit control in a compact module. It is ideal where two lights, roller shutters or bi-directional motors share a phase and you want independent control without installing separate devices.

It is less suitable for buyers who need a plug-and-play consumer product with no wiring or those who require multi-phase split across channels; professional installation or basic wiring knowledge is recommended to make full use of the device and its power metering features.

Pros & Cons

Pros

• Accurate per-channel power metering which helps identify consumption and optimize usage.
• Two channels in one compact module reduce installation space and component count.
• Supports heavier loads with up to 16A per channel, suitable for motors and larger fixtures.
• Flexible control via app, manual switches, automation systems and voice assistants.

Cons

• Installation can be mixed in difficulty for some users, so electrical confidence or a tradesperson is advisable.
• Not intended for multi-phase channel separation; both channels work on the same phase.

Specifications

Device type	Wi-Fi two-channel smart relay switch
Channels	2 independent channels
Max current per channel	16A
Power metering	Built-in per-channel energy monitoring
Connectivity	Wi-Fi with Bluetooth gateway capability
Control methods	Manual switch, mobile app, automation systems, voice assistants
Warranty	3 years (manufacturer support)

Our Verdict

The Shelly 2PM Gen3 is a practical choice for anyone needing compact dual-channel control with reliable power metering and good load capacity. It delivers strong value where monitoring and automation reduce energy waste or add convenience, but prospective buyers should be prepared for a hands-on installation or hire a professional for safe wiring.

Frequently Asked Questions

Can this control roller shutters and blinds?
Yes. The dual channels and support for bi-directional motors let you automate roller shutters and blinds, including timed opening and closing.

Does it measure energy per channel?
Yes. The unit provides built-in power metering that tracks consumption separately for each channel.

What control options are available?
You can control it via a manual wall switch, the Shelly app, home automation integrations or voice assistants for flexible operation.