The SONOFF BASIC-1GSP is a DIN rail-mounted smart relay with Matter-over-Wi-Fi support, designed for smart control and energy monitoring of high-power electrical loads. It can switch up to 32A and 7680W, making it ideal for electric heating, boilers, heat pumps, high-power lighting systems, and other energy-intensive devices.
The built-in power metering function allows real-time monitoring of energy consumption, voltage, current, and power. The eWeLink app provides detailed daily, weekly, monthly, and up to 180-day consumption and cost reports, which can also be exported. Automations can be created based on energy usage, allowing the system to automatically switch off devices that are running unnecessarily or send notifications in case of abnormal consumption.
Thanks to Matter support, the relay can be directly integrated into Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, and other Matter-compatible systems. Local LAN control, cloud-based access, detailed automation options, and advanced protection functions make it suitable for both home and professional use.
The device also supports charging protection, which automatically turns off chargers or battery-powered devices when they no longer draw significant power. Adjustable current, voltage, and power thresholds allow the system to automatically cut power in case of overload, increasing safety and protecting connected equipment. In case of an internet outage, proximity control keeps the device controllable via Bluetooth, provided the phone has mobile internet access.
About SONOFF
SONOFF is one of the best-known smart home brands of ITEAD, popular worldwide for its affordable yet feature-rich automation solutions. The manufacturer’s portfolio includes Wi-Fi, Zigbee, Matter, and eWeLink-compatible relays, switches, sensors, energy meters, smart plugs, and industrial automation devices.
One of the key advantages of SONOFF products is their broad compatibility. Most devices can be integrated with Amazon Alexa, Google Home, Samsung SmartThings, Home Assistant, IFTTT, and many other systems. The manufacturer focuses strongly on local control, automation options, and energy efficiency, making its products popular in both residential and professional environments.
Key Features
- Matter support: Direct integration with popular Matter-compatible smart home systems
- Energy monitoring: Real-time monitoring of power, current, voltage, and energy consumption
- Energy cost analysis: Daily, weekly, monthly, and 180-day cost and consumption statistics
- Data export: Export energy consumption data from the last 180 days
- Wi-Fi connection: Direct connection to a 2.4 GHz wireless network
- LAN control: Local control without internet access
- Smart Timer functions: Scheduled switching, countdown, loop, and random timer programs
- Charging protection: Automatic shutdown after charging is completed
- Overload protection: Adjustable current, voltage, and power thresholds
- Push notifications: Status and consumption alerts sent to your mobile phone
- Event logging: Stores event history for up to 3 months
Smart Home Protocols and Platform Compatibility
- Wi-Fi: IEEE 802.11 b/g/n 2.4 GHz communication
- Matter: Native Matter-over-Wi-Fi support
- eWeLink: Full support and configuration
- Amazon Alexa: Voice control supported
- Google Home: Voice control supported
- Samsung SmartThings: Matter integration
- IFTTT: Automation integration
- LAN Control: Local network control without cloud dependency
- Smart Scene: Create automations and advanced scenes
Smart Functions
- Remote ON/OFF control from the mobile app
- Real-time energy monitoring
- Daily, weekly, monthly, and 180-day energy consumption statistics
- Energy cost calculation based on custom tariffs
- Energy consumption data export
- Scheduled ON/OFF switching
- Countdown Timer
- Loop Timer
- Random Timer
- Inching mode
- Device grouping
- Automations and Smart Scene scenarios
- Push notifications on status changes
- Power-on state setting after power outage: ON / OFF / Last State / Reverse Last State
- Charging protection for battery-powered devices
- Remote firmware updates
- LAN control without internet access
- 3-month event log
Electrical Functions
- Power supply: 100–240V AC, 50/60Hz
- Output type: Relay switch output
- Number of outputs: 1 channel
- Maximum switching current: 32A
- Maximum switching power: 7680W
- Energy metering: Yes
- Current measurement: Yes
- Voltage measurement: Yes
- Power measurement: Yes
- Overload protection: Adjustable current, voltage, and power thresholds
Technical Specifications
- Product name: Basic DIN Rail Matter-over-Wi-Fi Version
- Product type: SONOFF Matter-over-Wi-Fi Smart Switch
- Model: BASIC-1GSP
- MCU: BK7238
- Communication: Wi-Fi IEEE 802.11 b/g/n 2.4GHz
- Matter support: Yes
- Power supply: 100–240V AC, 50/60Hz
- Rated current: 32A
- Maximum load: 7680W
- Dimensions: 84 × 66.5 × 18 mm
- Weight: 92.1 g
- Housing material: PC plastic
- Color: White
- Mounting: DIN rail
- Application area: Indoor use
- Operating temperature: -15°C to +50°C
- Operating humidity: 10% to 90% RH, non-condensing
- Energy metering: Yes
- Energy cost calculation: Yes
- Energy consumption data export: Last 180 days
- LAN control: Yes
- Push notifications: Yes
- Event log: 3 months
- Power-on state after outage: ON / OFF / Last State / Reverse Last State
- Certifications: CE, RoHS, FCC, CP65, Matter
