6 models in this file
eWeLink Smart Switches and Relays for Every Circuit
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eWeLink is not a hardware maker in the usual sense. It is the app and cloud platform that a large number of Wi-Fi switches, relays and plugs run on, so a search for an eWeLink smart switch turns up products from SONOFF and several smaller brands that all pair with the same app for remote control, schedules, scenes and voice assistant links. For travelers and RV owners, the interesting part of the ecosystem is the low-voltage relays that can switch 12V or 24V circuits, sitting right next to mains-voltage switches for the house.
The six devices here come from RODOT, SONOFF, Ururtm and Huacaoe, and they differ mostly in what they switch: two 30A modules for heavy AC appliances, two dry-contact relays for low-voltage DIY and vehicle projects, one in-wall touch switch and one dual plug-in outlet.
The line-up at a glance
eWeLink Smart Switches Compared
| Device | Made By | Form Factor | Power Input |
|---|---|---|---|
| Ewelink 30A High Power WiFi Smart Switch (2 pcs) | RODOT | Inline relay module | AC 90-250V |
| Ewelink WiFi Wireless Smart Relay Module | RODOT | Dry contact relay | USB 5V or DC 7-48V |
| SONOFF TX Gen2 Smart Wall Touch Switch | SONOFF | In-wall touch panel | 120V AC, neutral required |
| WiFi eWelink Smart Switch 30A | Ururtm | Inline relay module | 220V listed |
| Ewelink 16A WiFi Dual Smart Outlet | RODOT | Plug-in dual outlet | AC 100-240V |
| EWeLink 1CH 7-32V Smart Switch | Huacaoe | Dry contact relay | USB 5V or AC/DC 7-32V |
No. 1 of 6 · Rodot
Ewelink 30A High Power WiFi Smart Switch for Water Heaters and Pumps
9.0/10 Our score
What the listing says
- High Power Support The receiver adopts a 30A relay, which can support high-power electrical loads (enough to meet the…
- Timing automation management Preset time or schedule through the smart application to realize the automatic switching of lamps and…
- Intelligent scene linkage Create intelligent scenes to realize linkage control between devices, or group multiple devices into one group…
- REMOTE CONTROL ANYTIME, ANYWHERE With our EWELINK app, no matter where you are, just touch the screen of your phone…
- Voice control to free your hands The smart switch is compatible with mainstream voice assistants, such as Amazon Alexa and Google Assistant,…
The Ewelink 30A Hight Power WiFi Smart Switch, model KR2201BY, comes as a two-pack from RODOT. It uses a 30A relay rated for 3000 watts of resistive load and 800 watts of inductive load, and the listing aims it at electric water heaters and high-power water pumps. Input is AC 90 to 250V at 50 or 60 Hz, and it connects over 2.4GHz Wi-Fi to the eWeLink app on iOS and Android.
Control options include three timer types (fixed time, countdown and cycle), scenes and groups, Alexa and Google Assistant voice control, and a 2.4GHz remote. In self-locking mode it acts as a normal on-off switch, while inching mode turns the load off automatically after a time you set in the app. The listing is inconsistent on voltage, with the title quoting 110V, 120V and 240V and the specifications listing 120 volts; the stated input range is the most useful guide.
Note the inductive limit: 800 watts is modest, so check the running and startup draw of a pump motor before wiring it in. This suits homeowners and cabin owners who want remote control over a resistive heater or a smaller pump. Anything involving mains wiring should be installed by someone qualified, with the power off.
No. 2 of 6 · Rodot
Ewelink WiFi Wireless Smart Relay Module for Low-Voltage Projects
9.4/10 Our score
Best for: Vans and boats on 12V or 24V
What the listing says
- Product Overview This is a wifi smart switch, users can remotely switch connected home appliances or devices through…
- Input/Output Low voltage ewelink APP wifi dry contact relay/passive output, USB 5V input or DC 7~48V positive and negative input.
- Working Mode Self-locking mode by default, users can switch to inching mode in APP: for example, the device…
- Voice Control Works perfectly with Amazon Alexa, Google Assistant, IFTTT, Google Nes.
- Easy to setup with low voltage USB 5V or DC 7-48V,add Smart WIFI control to your home,support 2.4G wifi…
- PRODUCT MODEL KR0548-1CH
Pros
- USB 5V or DC 7-48V input
- Dry contact output
- Adjustable inching interval
Cons
- 4GHz Wi-Fi only
- Contact current rating not listed
The Ewelink WiFi Wireless Smart Relay Module, model KR0548-1CH from RODOT, is a dry contact relay that takes power from USB 5V or a DC supply from 7 to 48V. A dry contact output is passive, meaning it closes a circuit without supplying voltage itself, which makes it ideal for triggering a gate controller, a PC power button, a doorbell circuit or a 12V accessory in a van through the eWeLink app.
It defaults to self-locking mode and can switch to inching mode, where it turns on and then off automatically at an adjustable interval such as 1 second, acting like a wireless button. The listing names Alexa, Google Assistant, IFTTT and Google Nest compatibility, a 2.4G remote, timers, scenes and power-on settings. It supports only 2.4GHz Wi-Fi, not 5GHz, and the listing does not specify the relay’s contact current rating, so avoid using it to carry heavy loads directly.
This is the pick for van builders, boat owners and tinkerers who want to add app control to a 12V or 24V system, typically by driving a larger relay or a low-current device. If you need Bluetooth control when there is no Wi-Fi, the Huacaoe relay below adds that.
No. 3 of 6 · Sonoff
SONOFF TX Gen2 Smart Wall Touch Switch for Home Lighting
8.4/10 Our score
Best for: Replacing a wall light switch
What the listing says
- Matter Compatibility for Seamless Smart Integration: Easily integrate with popular smart home platforms and sync with your existing Matter-enabled devices.
- Independent Relay Mode for Uninterrupted Control: Once activated, this mode separates the physical buttons from the relay state.
- Nighttime LED Button Indicator with Dimmable Light: The switch button comes with a built-in LED indicator,…
- Remote Control & Smart Scenes via 2.4GHz Wi-Fi: Connect the switch to your 2.4GHz Wi-Fi network…
- 120-Type Panel Design & Flexible Power Support: Available in 1-channel, 2-channel, or 3-channel (1C/2C/3C) versions, featuring…
Pros
- Matter compatible
- Independent relay mode
- Dimmable LED indicator
Cons
- Needs neutral wire
- 10A rating limits loads
The SONOFF TX Gen2 Smart Wall Touch Switch, model T6-1C-120M, is a 1-channel in-wall touch switch with a standard 120-type panel that fits most North American junction boxes. It is Matter compatible and works with Apple Home, Google Home and Amazon Alexa, as well as the eWeLink app over 2.4GHz Wi-Fi. It needs a neutral wire and is rated 10A at 120V AC.
Two features stand out. Independent relay mode separates the physical button from the relay, so a smart bulb stays powered and online even if someone taps the switch. A built-in LED indicator has adjustable brightness, easy to find in the dark but dim enough not to disturb sleep. Timers and scenes such as a Good Night routine run from the app. The listing also mentions 2-channel and 3-channel versions, but this product is the 1-channel model.
This is the only device here that replaces a wall switch, and it suits home and cabin owners who want a clean install rather than a module hidden behind a fixture. For a motion-triggered alternative in hallways, see our motion sensor switch guide.
No. 4 of 6 · Ururtm
WiFi eWelink Smart Switch 30A for Heavy-Duty AC Equipment
8.4/10 Our score
Best for: Heavy AC loads like compressors
What the listing says
- SMART CONTROL Control your high-power devices remotely using the eWelink app on your smartphone for home automation projects.
- HIGH CAPACITY Rated for 30A high-power applications, suitable for controlling heavy-duty electrical equipment and appliances.
- TIMER FUNCTION Set customized schedules and timers to automate your devices, helping manage power usage effectively.
- EASY SETUP Simple DIY installation with the wireless module, allowing you to transform regular devices into smart appliances,…
- WIDE COMPATIBILITY Compatible with various AC-powered household devices and appliances, enabling comprehensive smart home automation across multiple rooms…
- VOICE CONTROL INTEGRATION Seamlessly integrates with popular voice assistants like Alexa and Google Home, allowing hands-free control of your…
Pros
- Rated 30A
- Timers and scenes
- Alexa and Google Home support
Cons
- Listed at 220V
- Load wattage limits not listed
The WiFi eWelink Smart Switch from Ururtm is another 30A module, marketed for air compressors, water pump motors, hot water heaters and other high-power appliances. It connects to the eWeLink app for remote control, real-time status, schedules, timers, scenes and groups, and works with Alexa and Google Home. It has a black finish and ships with an English user manual.
The specifications list 220 volts, screw terminals and a push button control, with an upper temperature rating of 60 °C. The listing does not give separate resistive and inductive load limits the way the RODOT 30A switch does, so treat motor loads with caution and confirm the rating with the seller. It also does not specify the Wi-Fi band, though eWeLink modules commonly use 2.4GHz.
This module suits workshop and utility uses where a single high-current appliance needs remote control. For a household on 120V, the RODOT 30A two-pack states a clearer input range.
No. 5 of 6 · Rodot
Ewelink 16A WiFi Dual Smart Outlet for Plug-In Control
9.0/10 Our score
Best for: Plug-in control without wiring
What the listing says
- Dual Plugs and Independent Control This smart socket features two grounded outlets with a total maximum load of 16A / 1920W (120V AC, 60Hz).
- App Control Use the Ewelink App to access your smart plugs via WiFi and Bluetooth to schedule lights,…
- Voice Control Use simple voice commands with Alexa and Google Assistant to control connected devices, making it ideal…
- Setting Timing Use the Ewelink App to easily set schedules, timers, and scenes for the outlet plug.
- Wide Application Transform your household appliances into smart devices, such as lights, toasters, coffee mills, and more.
Pros
- Two independent outlets
- Wi-Fi and Bluetooth
- Compact 30 x 88 x 38 mm
Cons
- 16A shared across both outlets
The Ewelink 16A WiFi Dual Smart Outlet from RODOT, model CZ2202W-EW, needs no wiring at all. It plugs into a wall socket and provides two grounded outlets that can be controlled independently or grouped. The total load is 16A or about 1920W at 120V, shared between both sockets, and it accepts AC 100 to 240V.
It pairs over Wi-Fi and Bluetooth, supports schedules, timers and scenes, and works with Alexa, Google Assistant and SmartThings. Standby power is listed at 1W or less, working temperature from -20 to 60 °C, and the size is a compact 30 by 88 by 38 mm, small enough to drop into a bag for a rental or a seasonal cabin.
This suits renters and travelers who want timers on lamps, fans or a coffee maker without touching a junction box. Parents can also use it to limit screen time on a TV or console. If you are powering an RV from a portable battery station, our RV solar generator guide helps match loads to capacity.
No. 6 of 6 · Huacaoe
EWeLink 1CH 7-32V Smart Switch Self-Locking Relay for RVs
9.8/10 Our score
Best for: RV relays with Bluetooth fallback
What the listing says
- Easy to set up: Use low-voltage USB 5V or AC/DC 7-32V, only 2.4G wifi is supported.The…
- Working mode: Two modes are available,self-locking (on/off) mode and point-moving (instantaneous) mode.
- DIY Smart Home DIY your smart lights, fans, garage doors, humidifiers, thermostats and more.
- Multi-person sharing: Scheduling timing function and sharing control, create scheduling intelligent scene, support countdown/sunrise/sunset/cycle timer, and…
- Voice control: The WiFi smart module works with Alexa/Google Assistant, and you can also set up…
Pros
- AC/DC 7-32V or USB 5V
- Bluetooth control offline
- Sunrise and sunset timers
Cons
- Setup text mentions Smart Life app
- 10A rating
The EWeLink 1CH 7-32V Smart Switch,Self-Locking Relay from Huacaoe is a dry contact relay powered by USB 5V or AC/DC 7 to 32V, which covers 12V and 24V vehicle systems. It supports 2.4GHz Wi-Fi and Bluetooth, and the listing says it can be controlled at close range over Bluetooth when the network is down, a real advantage in a campground with patchy Wi-Fi.
Like the RODOT relay, it offers self-locking and momentary modes, acting as a wireless switch or button. Timers include countdown, sunrise, sunset and cycle, and control can be shared with family members. It works with Alexa and Google Assistant, is rated 10A, and the specifications list DIN rail mounting. One inconsistency: the setup text mentions configuring through the Smart Life app, while the rest of the listing and the title refer to eWeLink, so check the manual for the correct app.
This suits RV owners who want to switch lights, fans or a water pump trigger from a phone, with a fallback when Wi-Fi drops. It gives way to the RODOT relay if you need an input above 32V.
Before you choose
How to Choose the Right eWeLink Switch
Start with the voltage you are switching. Mains appliances call for the RODOT 30A, the Ururtm 30A, the SONOFF wall switch or the dual outlet. Low-voltage systems in vans, boats and RVs call for the two dry contact relays, with the RODOT module covering up to 48V DC and the Huacaoe relay up to 32V.
Next, match the load. Water heaters and resistive loads suit the 30A modules, but check inductive limits for motors. Lighting circuits fit the SONOFF’s 10A rating. Plug-in devices up to 16A total fit the dual outlet.
Then decide how it will be installed. The SONOFF replaces a wall switch and needs a neutral wire. The relays and 30A modules hide inside enclosures. The dual outlet needs no tools. For more wall-switch options, our smart light switch roundup is a good companion.
Finally, consider connectivity. All of these rely on 2.4GHz Wi-Fi for remote use. Only the dual outlet and the Huacaoe relay list Bluetooth, which helps when you are off the network.
Questions people ask
FAQ
Is eWeLink a brand or an app?
It is primarily the app and platform. The devices here are made by RODOT, SONOFF, Ururtm and Huacaoe and are controlled through the eWeLink app.
Which eWeLink switch works on a 12V RV system?
The RODOT Wireless Smart Relay Module (DC 7-48V) and the Huacaoe 1CH relay (AC/DC 7-32V) both accept 12V power.
Do eWeLink devices work on 5GHz Wi-Fi?
The listings that specify a band say 2.4GHz only, and the RODOT relay module states that 5GHz is not supported.
Which switch works with Apple Home?
The SONOFF TX Gen2 is Matter compatible and lists Apple Home support.
Can the dual outlet run two heaters at once?
Only if their combined draw stays within 16A or about 1920W, since both sockets share that limit.
Prices, specifications and the feature lines above are read from the product listing and can change without notice. Scores are out of 10, based on listed specifications and buyer feedback; nothing on this page is written from handling the product.
