Ewelink WiFi Wireless Smart Relay Module DC 7V 12V 24V 36V 48V 4 Channel Inching Self-Lock Latched Dry Contact Remote Switch for Motor, Compatible with Alexa Google Home(2PCS 4CH)

Price: $24.99
(as of Jul 23, 2026 23:59:53 UTC – Details)

Product description

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Style
Wi-Fi Wi-Fi Wi-Fi Wi-Fi Zigbee Wi-Fi

Input voltage
USB 5V;DC 7~48V USB 5V;DC 7~48V USB 5V;DC 7~48V AC 90~240V AC 90~240V AC 90~240V

Maximum load
10a 10a 10a 16a 16a 16A(shared between two channels)

A Wifi switch relay module with APP remote on/off, smart timing, linked scene, voice control, power-on status setting, inching setting, sharing control, etc. You can use it to work with eWelink app, 2.4G remote control, Amazon Alexa Echo, Google Home, etc.

Dimensions: Length 70.5mmX Width 27.4mmX Height 23mm

Main chip: WIFI module

Input voltage: USB 5V/DC 7-48V

1. It has a signal indicator light and a relay pull-in indicator light.

2. The board power consumption is less than 1W and the quiescent current is 80MA

3. The rated switching current is within 10A, and the switching voltage is within 250V.

4. 10A relay

5. The relay life is more than 1,000,000 times.

6. Electrical insulation resistance 100M

7. Electric shock withstand voltage 1000V

8. The maximum pull-in time of the relay is 15mS milliseconds

9. The maximum release time of the relay is 5mS milliseconds

10. Working temperature -40 degrees to +70 degrees

11. Working humidity 40% ~ 80%RH

Note: The product is dry contact passive output, the power input (DC) is only for PCBA, the user only needs to provide additional power supply for the load to work as needed.

Please note: The device input interface has now been upgraded to a USB-C port.

eWeLink Wifi Relay Module 1CH

There are two types of input, USB 5V and terminal wired DC 7V~48V, you only need to choose one of them.

There is no voltage output on the output, you need to lead from the input, or provide additional power for the load to use.

Relay parameters.

10A/250VAC 7A/250VAC

12A/125VAC

eWeLink Wifi Relay Module 2CH

There are two types of input, USB 5V and terminal wired DC 7V~48V, you only need to choose one of them.

There is no voltage output on the output, you need to lead from the input, or provide additional power for the load to use.

Relay parameters.

10A/250VAC 7A/250VAC

12A/125VAC

eWeLink Wifi Relay Module 4CH

There are two types of input, USB 5V and terminal wired DC 7V~48V, you only need to choose one of them.

There is no voltage output on the output, you need to lead from the input, or provide additional power for the load to use.

Relay parameters.

10A/250VAC 7A/250VAC

12A/125VAC

The product supports inching, self-locking and interlocking working modes

When in inching mode, you can have two use options.

-Automatic off after 1 second on

-Automatic on after 1 second off (The duration can be set freely)

When in self-locking mode, you can immediately turn on/off the connected device remotely.

When in interlock mode (only 2-gang and 4-gang are supported), you can remotely control the AC/DC motor.

The product allows remote control of home appliances via the mobile app eWeLink, available on Android and iOS.

eWeLink APP control at all times

1 simple APP can easily experience smart home.

All ON/OFF Transmitter

1 remote control can control 4 devices, can be turned on and off at the same time

Alexa Echo/Google Voice Control

Try out these phrases ( {deviceName} should be the name of your device):

“Alexa, turn on {deviceName}”

“Alexa, turn off {deviceName}”

Also you can ask Google Home to control the device with the following voice commands.

“hey, google, turn on {deviceName}”

“OK, google, turn off {deviceName}”

How to works with IFTTT:

Search “eWeLink Smart Home” in IFTTT APP.

Timing function

Timers can be set to turn devices on and off, and cycle times can be set. Take full control of the lights in your home or office by scheduling a timer.

In the home, in addition to lamps, other devices can be connected and controlled, such as induction cookers, water heaters, water dispensers, kettles, humidifiers and other household equipment

Connect up to 1 device in a single circuit.

2-way up to 2 devices

4-channel connects up to 4 devices

Another wide range of applications is in motors and motors, such as garage doors, rolling doors, electric fans, agricultural irrigation, etc.

If you have a remote control of your own, but struggle with the lack of remote range, you can also use our WiFi relay module to achieve WiFi remote control.

And you only need to connect COM and NO to both ends of your remote control’s buttons.

【Product Overview】This is a wifi smart switch, users can remotely switch connected home appliances or devices through ewelink APP, support third party voice control such as Amazon ECHO and Google Home and 2.4G light smart remote control, with timer on/off, scene linkage, power on setting, inching setting, sharing control and other functions
【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 turns on and turns off automatically at 1 second intervals (interval time can be adjusted),it works as wireless button in inching mode,as wireless switch in self-lock latching mode
【Voice Control】 Works perfectly with Amazon Alexa, Google Assistant, IFTTT, Google Nes. You need to bind your eWeLink account and sync your device in the corresponding APP. Note: WIFI Relay Module only supports 2.4G WIFI network, 5G WiFi is not supported.
【Easy to setup】 with low voltage USB 5V or DC 7-48V,add Smart WIFI control to your home,support 2.4G wifi only,once powered on,please check if light will flash 2 short 1 long,if so,tap Ewelink app to configure directly
PRODUCT MODEL : KR0548-4CH

Product summary

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