Sonoff DUAL R3 User Manual

The LED indicator flashes twice on repeated means you fail to connect to the server.
1. Make sure the Internet connection is normal. You can use your phone or PC to
connect to the Internet, and if you fail to access, please check the availability of the
Internet connection.
2. Maybe your router has a low carrying capacity. The number of devices connected
to the router exceeds its maximum value. Please check the maximum number of
devices that your router can carry. If the number of connected devices exceeds the
maximum value, please delete some devices or change a lager router and try again.
3. Please contact your ISP and confirm our server address is not shielded:
cn-disp.coolkit.cc (China Mainland)
as-disp.coolkit.cc (in Asia except China)
eu-disp.coolkit.cc (in EU)
us-disp.coolkit.cc (in US)
If none of the above methods solved this problem, please submit your issue via help
&feedback on the eWeLink App.
Common Problems
Fail to pair Wi-Fi devices with eWeLink APP
1. Make sure the device is in pairing mode.
The device will automatically exit the pairing mode if not paired within 3mins.
2. Please turn on the location service on your mobile phone and give the permission.
Before choosing the Wi-Fi network, the location service should be turned on and
the permission is given. Location information permission is used to obtain Wi-Fi
list information. If you tap "Disable", the device will not be added.
3. Make sure your Wi-Fi network runs on the 2.4GHz band.
4. Make sure you entered a correct Wi-Fi SSID and password, no special characters
contained.A wrong password is a very common reason for pairing failure.
5. You may get the device close to the router for a good signal transmission while pairing.
6. Please try to pair the device in the compatible mode.
Wi-Fi devices "Offline" issues
Please check the following issues by the Wi-Fi LED indicator status:
The LED indicator blinks once every 2s means you fail to connect to the router.
1. Maybe you entered a wrong Wi-Fi SSID and password.
2. Make sure your Wi-Fi SSID and password don't contain special characters, for
example, the Hebrew, Arabic characters. Our system can't recognize these characters
so that fail to connect to the Wi-Fi.
3. Maybe your router has a lower carrying capacity.
4. Maybe the Wi-Fi signal strength is weak. Your router is too far away from your device,
or there may be some obstacles between the router and the device so that the signal
transmission is blocked.
5. Be sure that the MAC of the device is not on the blacklist of your MAC management.

Sonoff DUAL R3 Specifications

General

Certification	TUV, FCC
Product color	White
Easy to install	Yes
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Housing material	Polycarbonate (PC)
Channels quantity	2 channels
Operating frequency	2.4 - 2.4835 MHz
Placement supported	Indoor
Wireless technology	Wi-Fi
Networking standards	IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
Connectivity technology	Wired & Wireless
Maximum power per channel	2200 W
Sustainability certificates	CE, RoHS
Package type	Box
Quantity per pack	1 pc(s)
Power source	AC
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Operating temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	5 - 95 %

Weight and Dimensions

Depth	49 mm
Width	54 mm
Height	24 mm
Weight	58 g