SONOFF 4CH PRO R3

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4-Channel Smart Control with Multiple Modes, RF Support & Voice Integration

✅ Independent & Interlocked Multi-Device Control
Control up to 4 connected devices individually in self-locking mode, or configure interlock mode to turn one device on while automatically turning the others off. Use inching mode to auto-turn off devices after 0.5 to 3600 seconds—perfect for garage doors, roller blinds, and more.

✅ Dry Contact Support for Low-Power Applications
No need to power devices through the output? The 4CHPROR3 supports dry contact, making it ideal for controlling circuits where only the signal is needed—perfect for gate openers, alarm systems, or other dry contact-based systems.

✅ 433MHz RF Remote Control
Control devices without Wi-Fi using any compatible 433MHz RF remote—offering flexible, local control even during internet outages.

✅ Ideal for Hard-to-Reach Installations
Designed for DIN rail mounting, making it easy to install in breaker boxes or utility panels—great for managing appliances or lighting systems located far from the switch.

✅ Voice Assistant & Platform Compatibility
Works with Amazon Alexa, Google Assistant, SmartThings, and Alice. Just say the word to toggle connected devices via voice commands for hands-free control.

✅ App-Based Remote Control
Use the eWeLink app to control all 4 channels remotely. Monitor the real-time on/off status, activate working modes, or automate schedules from anywhere.

✅ 3 Configurable Working Modes
Choose between self-locking, interlock, or inching mode to suit different device behaviors and automation needs.

✅ Advanced Timer & Scheduling Features
Set schedules or countdown timers to automate device actions—turn lights on at sunset or power down appliances after a set duration.

✅ Smart Scene Triggers & Device Sharing
Create custom scenes to trigger other smart devices, and share control with family members or other users for collaborative management.

✅ Power-On State Memory
Restore the last configured state (On/Off/Keep) after a power outage—ensuring devices return to your preferred status automatically.

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⚡ Smart Control. Multi-Device Flexibility. Total Automation.
The SONOFF 4CHPROR3 is your all-in-one smart relay solution—ideal for advanced home and industrial automation setups with voice, app, and RF control options.

🧠 4-Channel Independent/Interlock Control | 🕹️ RF + App Access | 💡 Voice Assistant Support | 📲 Remote Monitoring & Automation

 

4CHPROR3 Specifications

• Voltage Range: 100-240V AC 50/60Hz(DC: 9-23V)
• Max. Load: 10A/2200W/Gang 40A/8800W/Total
• Wireless Frequency: WiFi 2.4GHz 
• Wireless Standard: IEEE802.11 b/g/n 2.4GHz2.4GHz(2400M-2483.5M);&nbsp
• Security Mechanism: WPA/WPA2
• Enclosure Material: PCV0
• Gang: 4
• Dimension:145*90*34 (mm)
• Operating Temperature(recommended): -10ºC-40ºC(14°F-104°F)
• Operating Humidity: 5%-95%RH, Non-condensing
• Does not support Code Hoping remotes (only learning remotes)