SONOFF RFR2 10A Wi-Fi & 433MHz RF Smart Switch
Dual-Control Inline Smart Relay for Home Automation & Local RF Control
The SONOFF RFR2 is a 10A (2200W) inline smart relay switch that seamlessly upgrades traditional electrical appliances into smart devices. Combining 2.4GHz Wi-Fi with a built-in 433.92MHz RF receiver, the RFR2 gives you dual-control flexibility: manage devices remotely via smartphone apps and voice assistants, or trigger them locally using handheld 433MHz RF remotes—even when your Wi-Fi is offline.
Built with an upgraded flame-retardant PC shell and improved environmental protection, the RFR2 offers a safe, reliable, and cost-effective way to automate lighting, fans, pumps, and everyday electronics.
Key Features
Dual Wireless Control: Operates via 2.4GHz Wi-Fi for long-distance smart control and 433MHz RF for local, latency-free physical remote switching.
App Control Anywhere: Full integration with the eWeLink app (iOS/Android) allows you to check status, turn devices on/off, and set automated routines from anywhere in the world.
Offline RF Fallback: Pair with standard 433MHz RF keyfobs or wall switches to control appliances directly during internet outages.
Hands-Free Voice Control: Works seamlessly with Amazon Alexa and Google Assistant for voice-activated operation.
Smart Timers & Schedules: Set countdown timers, single/repeat schedules, or loop timers to automate daily routines automatically.
LAN Mode: Supports local area network control, enabling app responsiveness within your home router network even if cloud connectivity is lost.
Enhanced Safety Build: Features an upgraded PC V0 fire-retardant casing with reinforced wire terminals and moisture-resistant internal board design.
Typical Applications
Smart Lighting: Wire inline with ceiling lights, standing lamps, or outdoor fixtures for smart and remote wall-switch control.
Appliances & Fans: Automate standing fans, heater panels, and small household electronics under 10A draw.
Outdoor & Pool Equipment: Connect to irrigation valves, fountain pumps, or security lights (must be housed in a weatherproof enclosure).
Technical Specifications
| Parameter | Specification |
| Brand / Model | SONOFF RFR2 |
| Max Current / Power | 10A / 2200W |
| Input Voltage | 100V – 240V AC (50/60Hz) |
| Output Voltage | 100V – 240V AC (50/60Hz) |
| Wi-Fi Protocol | IEEE 802.11 b/g/n 2.4GHz (5GHz not supported) |
| RF Reception | 433.92MHz (Fixed Code / EV1527 compatible) |
| Dimensions | 90 mm × 41 mm × 27 mm |
| Enclosure Material | PC V0 Fire-retardant plastic |
| Certification | CE, FCC, RoHS |