Shelly Pro Dimmer 2PM, 2-channel dimmer with power monitoring

Shelly Pro Dimmer 2PM – a DIN-rail mountable professional 2-channel dimmer with power monitoring; designed to control a wide range of 110–240 V lighting (LED, halogen, iron-core transformers) with advanced automation capabilities.

Features

• Connectivity: Wi-Fi, Ethernet (LAN), Bluetooth; also functions as Wi-Fi range extender and BLE gateway
• Per-channel power measurement (voltage, current, power)
• Automatic dimming calibration for smooth transitions
• One/dual-button dimming control (switch input mode)
• Night mode, adjustable min/max brightness, button fade rate and transition timing
• Schedules (up to 20), auto on/off timers, sunrise/sunset routines, scenes
• Local automation: scripting (mJS), Webhooks, MQTT, virtual components, KNXnet/IP
• Safety protections (over-current/voltage/temperature/power)
• LED indicators (outputs, LAN, Wi-Fi, OTA), AP/reset button

Primary Uses

• Professional lighting control with precise dimming in residential or commercial installations
• Creating automation based on time-of-day and ambient conditions
• Energy usage monitoring and control in real time
• Retrofit installation in DIN panel setups, hub-free operation

Compatibility

• Accessible both locally (Web UI) and via cloud
• Works with Shelly ecosystem and integrates with Alexa, Google Home, SmartThings
• Hub-free operation, supports local logic via MQTT, Webhooks, scripting