The SONOFF RE5V1C-R2 is a nano-sized Wi-Fi relay module powered by 5V DC with dry-contact output. Unlike standard SONOFF products, it offers two selectable working modes — inching and self-locking — switchable directly from the eWeLink app.

In self-locking mode the relay toggles on and off with each press. In inching mode the output stays active only while the button is held, making it suitable for momentary-action applications such as door openers or gates.

Key Features

• Two operating modes: inching and self-locking, switchable via eWeLink app
• 5V DC input with dry-contact relay output (max 10 A)
• Wi-Fi 802.11 b/g/n at 2.4 GHz with WPA/WPA2 security
• Maximum RF output power +20.5 dBm in 802.11b mode
• Works with Amazon Alexa, Google Assistant, Google Home, Google Nest, Samsung SmartThings, and IFTTT
• Compatible with Android and iOS via eWeLink app
• Timer schedule, remote on/off, device sharing, and group management supported
• Certifications: CE / FCC / RoHS

Product Benefits

• Two modes in one module eliminate the need for separate inching or latching relays
• Dry-contact output integrates with low-voltage control circuits without electrical interference
• Voice assistant compatibility allows hands-free control of connected appliances
• Timer scheduling automates switching without manual intervention
• Device sharing and group management let multiple users or device groups be controlled from one app

Technical Specifications

• Power Supply: 5V DC, maximum working current 250 mA
• Wireless Standard: IEEE 802.11 b/g/n
• Wi-Fi Frequency: 2.4 GHz
• Wi-Fi Security: WPA / WPA2
• Max RF Output Power: +20.5 dBm (802.11b mode)
• Output Contact Type: Dry contact
• Max Output Current: 10 A
• Protection Rating: IP2
• Enclosure Material: PC V0
• Body Colour: Green PCB
• Operating Temperature: -10 °C to +40 °C
• Humidity: 5%–90% RH, non-condensing
• Certifications: CE / FCC / RoHS

Why You'll Love It

• Nano form factor fits inside junction boxes or tight enclosures with no extra space required
• Mode switching in the app takes seconds — no hardware changes or rewiring needed
• Broad smart-home ecosystem support means it slots into an existing setup without a dedicated hub
• Scheduling and remote access work even when you are away from home