Difference between revisions of "Sonoff G1 G2"

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| style="text-align:right" | 11 || France || Free  
| style="text-align:right" | 11 || France || Free  
| style="text-align:right" | 12 || Montenegro || Telenor, M-tel

Latest revision as of 04:06, 26 April 2018


Soonoff G1 G2.jpg

Sonoff G1 and Sonoff G2 are 1 gang WiFi smart switches that integrate with ST86 module(quad-band GSM/GPRS). Users can use the switch to turn on/off connected home appliances by pressing the local button or remotely by the App eWeLink.

Different from other Sonoff products that have to connect to WiFi or LAN, G1 and G2 use the data of the switch itself to control connected appliances. G1 supports to insert an external SIM card with 2G network(GSM/GPRS:800/900/1800/1900MHz) and use the data of the card to control appliances. G2 integrates with a China Mobile SIM card with 2G network, users can use the switch directly to control appliances.

Users can check real-time data from the interface, they can even top up data when the data running low. With Sonoff G1 and Sonoff G2, users can turn on/off appliances from anywhere at anytime. Users can create favourite scenes to trigger on/off a gang of devices with single touch. Besides, users can set up 8 single/repeat/countdown timers to auto-turn the appliances on/off at a specified time. They can share the device to their friends and family and give timer permissions as they want, so they can control the appliances or lights together.

Go shopping Sonoff G1(SKU:IM170424003)


  • Local turn on/off
  • GSM/GPRS remotely turn on/off
  • Share control
  • Scene/smart scene
  • Scheduled/countdown timers
  • Check data plan/usage/remain (use ITEAD's SIM card)

Sonoff g1 gsm smart switch-ui.jpg

Unsupport List

Some countries have stopped providing with 2G networks, like America, Australia. And some SIM cards don't allow 2G network. Please confirm before you order this product.

Here's a list of SIM cards DON'T support Sonoff G1. If you find out more, please kindly tell us.

NO Country Wireless Carrier
1 Hungary Telekom
2 Italy TIM, Wind, Postemobile
3 India Airtel Sim(4G Sim)
4 Uruguay ANTEL
5 Denmark Lebara, TDC, Telenor 
6 Spain Simyo, Eroski, Jazztel, Pepephone, Orangeworld
7 Argentina Telecom, Claro
9 Czech T-Mobile, Vodafone
10 Pakistan Mobilink, Zong and Ufone
11 France Free
12 Montenegro Telenor, M-tel


  • Power Supply: 90~250V AC (50/60Hz)
  • Max. Input Current: 16A
  • Max. Power: 3000W
  • Max. Soldering Temperature: 260℃
  • Weight: 100g
  • Product size: 114*52*32mm
  • Color: white
  • Wireless Frequency: 2.4Ghz
  • Operating Temperature(recommended): 0ºC-40ºC(32°F-104°F)
  • Operating Humidity: 5%-90%RH, Non-condensing

Product Characteristics

Parameter Description
Power supply 90~250V AC (50/60Hz)
Low power consumption Standby power consumption is 1.0 mW (BS-PA-MFRMS=9)
Band Quad-band: GSM850, EGSM900, DCS1800 and PCS1900MHz
meets with GSM Phase 2/2+
GSM type Small mobile station
Transmit power Class 4 (2W): GSM850, EGSM900
Class 1 (1W): DCS1800, PCS1900
GPRS connection characteristics GPRS multi-slot class 10
GPRS mobile station class B
Encoding formats CS-1, CS-2, CS-3 and CS-4
Protocol PAP Protocol (Password Verification Protocol) commonly used for PPP connections;
Built-in TCP/IP protocol stack
PBCCH Channel Supports Packet Broadcast Control Channel (PBCCH)
Circuit-Switched Data (CSD) Supports unstructured supplementary data services (USSD)
Short Message Service (SMS) MT, MO, CB, Text and PDU modes
SMS storage: SIM card or module internal FLASH
SIM card slot Support SIM card: 1.8V, 3V
Temperature range Operating temperature: -40°C to +80°C
Storage temperature: -45°C to +90°C

Wiring Instruction

Sonoff G1 G2 wiring.jpg

Note: the new version may have a different layout for L N E. Please pay attention to the print on the enclosure.

Useful Links

User Guide for Sonoff G1

Sonoff G2使用说明书

eWeLink Step-By-Step Guide


RoHS Certificate for Sonoff G1 Sonoff G2

CE-EMC Certificate for Sonoff G1 Sonoff G2

Read the CE-EMC Test Reports: