eWeLink SV — WiFi Inching / Self-Locking Switch (DC 5–24V, 1 Channel)
eWeLink SV — WiFi Inching / Self-Locking Switch (DC 5–24V, 1 Channel)
eWeLink SV — WiFi Inching / Self-Locking Switch (DC 5–24V, 1 Channel)
eWeLink SV — WiFi Inching / Self-Locking Switch (DC 5–24V, 1 Channel)
R 179.00R 199.00Save R 20.00
Out of Stock

⚡ eWeLink SV — WiFi Inching / Self-Locking Switch (DC 5–24V, 1 Channel)

A 1-channel WiFi dry contact relay module with inching (momentary) and self-locking modes. The SV is designed for low-voltage DC applications (5–24V) — perfect for triggering gate motors, garage doors, electric locks, and other DC-powered devices. Connects directly to WiFi — no hub or bridge needed. Controlled via the eWeLink app with Alexa and Google Assistant support.

🚚
Free Delivery
Orders over R2,500
🇿🇦
Local Stock
Ships from Gauteng
📶
WiFi Direct
No Hub Needed
🔌
1 Channel
DC 5–24V

🔀 WiFi Inching Relay Range

SV · 1 Ch · DC 5–24V ST-DC2 · 2 Ch · WiFi ST-DC4 · 4 Ch · WiFi+RF

⚡ Key Features

  • 1-Channel Dry Contact Relay — single relay output (NO/COM/NC); the relay is a switch only — it does not provide power to the connected device
  • Inching Mode (Momentary) — relay closes briefly (~0.5–1s) then auto-opens; perfect for pulsing gate motors, garage door triggers, and electric lock releases
  • Self-Locking Mode — relay stays on/off until toggled; for lights, pumps, 12V LED strips, and sustained on/off control
  • WiFi Direct — No Hub — connects straight to your 2.4GHz WiFi network via the eWeLink app; no Zigbee hub, bridge, or gateway required
  • DC 5–24V Input — powered by low-voltage DC; draw power directly from your gate motor's 12V output, a USB 5V supply, or a 24V DC adapter
  • eWeLink App — remote control from anywhere, timer/schedule, smart scenes, device sharing with family
  • Voice Control — Amazon Alexa, Google Assistant, IFTTT compatible
  • Compact Board — small form factor; fits inside gate motor housings, behind intercom panels, or in project enclosures
⚠️ Dry Contact Relay — No Power Output!
The relay output is a dry contact (NO/COM/NC). The DC power input only powers the WiFi board — it does NOT pass through to the relay. Connect the relay contacts across your gate motor's trigger terminals or lock release circuit.

🏠 What Can You Control?

🚗

Gate Motors

Wire NO + COM across your gate motor's trigger terminals. Set inching mode. One tap in the app sends a brief pulse — opens or closes the gate from anywhere in the world.

🏠

Garage Doors

Same setup as gates. The inching pulse triggers the garage opener like pressing the wall button. Power the SV from the opener's 12V or 24V output.

🔒

Electric Locks

Trigger electric strike locks or magnetic locks. Inching mode releases briefly, then re-locks. Set up eWeLink scenes: "When doorbell rings → unlock front door for 5 seconds."

💡

12V DC Devices

In self-locking mode, switch 12V LED strips, water pumps, DC fans, or any low-voltage device on/off. Power the SV from the same 12V supply.

🇿🇦 SA Gate Motor Tip: Most SA gate motors (CENTURION, ET, GEMINI) have a 12V DC output and trigger terminals. Power the SV board from the motor's 12V output, wire the relay across the TRIG terminals, set inching mode. Done — your gate is now smart. Works via WiFi, so you can open it from anywhere, share access with family via eWeLink, and set schedules.

📋 Technical Specifications

Model eWeLink SV (Safe Voltage)
Channels 1 (single dry contact relay)
Relay Output Dry contact: NO / COM / NC
Relay Rating 10A 250VAC / 10A 30VDC
Work Modes Inching (momentary) · Self-locking (toggle)
Protocol WiFi 2.4GHz (direct, no hub)
Board Power DC 5–24V
App eWeLink (iOS / Android)
Voice Control Amazon Alexa, Google Assistant, IFTTT
Hub Required No — WiFi direct

🔄 SV vs ST-DC2 vs ST-DC4 — Which One?

Feature SV ST-DC2 ST-DC4
Channels 1 2 4
Protocol WiFi WiFi WiFi + RF433
Power Input DC 5–24V only DC 5–32V / AC 90–260V DC 5–32V / AC 90–260V
Interlock ❌ ✅ ✅
Hub Needed No No No
Best For Single gate/garage Gate + garage combo Multi-gate / commercial

❓ Frequently Asked Questions

Does this need a Zigbee hub?
No — the SV connects directly to your WiFi network. No hub, bridge, or gateway required. Just the eWeLink app and a 2.4GHz WiFi connection.
Can I power it from my gate motor?
Most likely yes. If your gate motor has a 12V or 24V DC output (CENTURION D5/D10, ET Drive 500/600, GEMINI), you can power the SV directly from that output. Check your motor's manual for available DC voltage. The SV accepts 5–24V DC.
What's the difference between this and the Zigbee DC1?
The Zigbee DC1 uses Zigbee protocol (requires a Zigbee hub) and also acts as a mesh router. The SV uses WiFi (no hub needed). Choose the SV if you want simplicity — WiFi, no extra hardware. Choose the Zigbee DC1 if you already have a Zigbee mesh and want the routing benefit.
Does it support AC mains voltage?
No — the SV only supports DC 5–24V input. It cannot be powered from 230V AC mains. If you need mains voltage support, look at the ST-DC2 or ST-DC4 which accept DC 5–32V or AC 90–260V.

🤝 Need Help? We're Here for You!

📞

Call Us

Jesse: 071 678 8719
Jason: 084 505 7481

🏢

Visit Us

8 Wildebraam Street
Weltevreden Park, Roodepoort
Gauteng, 1709

📧

Email

info@eiferer.co.za

Open Your Gate From Anywhere. No Hub Required.

eWeLink SV — 1-channel WiFi dry contact relay · DC 5–24V · Inching + self-lock · R179