Shelly 2PM Gen4

Take your home or office automation to the next level with the Shelly 2PM Gen4. This ultra-compact dual-channel smart relay combines intelligent switching, accurate power monitoring on each channel, and full support for motorized blinds, roller shutters, curtains, and Venetian blinds.
Key Features
Dual-Channel Control with Independent Power Metering — Control and monitor energy consumption of two separate circuits or appliances in real time.
Versatile Cover/Blinds Mode — Perfect for motorized blinds, shutters, awnings, and curtains. Supports calibration, precise positioning (open/close/stop), and slat tilt control for Venetian blinds.
Multi-Protocol Connectivity — Wi-Fi, Matter (default Switch profile), Zigbee, and Bluetooth. Choose the best protocol for your setup — no hub required for many integrations.
Compact Design — Extremely small form factor (37 × 42 × 16 mm) that retrofits effortlessly into standard electrical wall boxes, behind power sockets, light switches, or other tight spaces.
Local & Cloud Control — Works standalone on your local Wi-Fi network or through cloud services. Full remote access from anywhere with internet.
Embedded Web Interface — Easy on-device configuration, monitoring, and control via browser.
Advanced Smart Features:
Scripting support
Schedules (complex time-based automation)
Webhooks, HTTP/MQTT(s), UDP
KNXnet/IP integration
Virtual components
Wi-Fi and Zigbee range extender functionality
BLE Gateway for Shelly BLU devices
Improved Performance — Upgraded processor and increased memory compared to previous generations for faster response and more reliable operation.
Safety Protections — Overheating, overvoltage, and overcurrent protection.
Perfect For
Home Use
Independent control of two lighting circuits (e.g., living room + hallway)
Smart shutter, blind, or curtain automation with sun elevation, time, or weather triggers
Energy monitoring of high-consumption appliances (coffee machine, toaster, etc.)
Bathroom fan + towel rail / mirror heater automation
Commercial & Office
Meeting room or zone lighting control
Shop signage and promotional display management
Automated window coverings in lobbies or conference rooms
Industrial Applications
Dual low-load motor control (fans, valves, small pumps)
Split-load energy monitoring for critical equipment
Broad Integrations
Amazon Alexa — Full voice control
Google Home — Seamless smart home integration
Samsung SmartThings — Full compatibility
Matter — Future-proof interoperability with major ecosystems
Works with Home Assistant, MQTT, and many other third-party systems
The Shelly 2PM Gen4 is the ideal choice for anyone looking for a powerful, flexible, and space-saving smart relay that excels at both simple switching and advanced motor control with energy insights.
Technical Note: Recommended for motors with electronic or mechanical limit switches. Always set motor limits correctly before installation.