SONOFF S61s Gen2 Matter Type F WiFi smart plug with energy monitoring
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SONOFF S61s Gen2 Matter Wi-Fi Type F smart energy monitoring plug
The SONOFF S61s (S61STPF) is a Type F (Schuko) smart plug equipped with Wi-Fi 2,4 GHz connectivity and support for the Matter standard. It enables remote power management for devices with a power rating of up to 3840 W (16 A) and real-time monitoring of network parameters and energy costs.
Key features
- Support for the Matter standard, ensuring interoperability between Apple Home, Google Home, Amazon Alexa, Home Assistant, and SmartThings ecosystems.
- Real-time monitoring of network parameters: voltage, current, power, operating time, and total electricity consumption.
- Designed for continuous load operation up to 16 A and a maximum power of 3840 W.
- Configurable overload protection with thresholds for current, voltage, and power.
- Very low standby power consumption of less than 0,5 W.
Compatibility with the Matter ecosystem
The S61s model supports the Matter standard, allowing for direct integration with popular smart home platforms without the need for brand-specific bridges. The device connects seamlessly with Apple Home, Google Home, Amazon Alexa, Samsung SmartThings, and Home Assistant ecosystems, enabling the creation of shared automations between devices from different manufacturers.

Collaboration with the Apple ecosystem
The plug offers full support for the Apple Home environment. Users can control device operation using the Home app and Siri voice commands on iPhone, iPad, and Apple Watch devices.

Durable and safe design
- Load capacity up to 16 A: stable operation when powering high-draw household appliances.
- Fire resistance V-0: the housing is made of high-grade self-extinguishing plastic, preventing deformation under heat.
- Relay durability: the actuator component is designed to perform up to 10 000 operating cycles.

Overload protection
The device allows you to define limit values for current (up to 16 A), voltage, and power consumption. When a set threshold is exceeded, the plug immediately and automatically cuts off power, protecting the electrical installation and connected equipment from the effects of overload.

Overcharge protection
A dedicated overcharge protection function allows you to secure the batteries of connected mobile devices and battery-powered equipment, preventing degradation caused by continuous charging after reaching full capacity.

Energy consumption and cost monitoring
The plug measures receiver operating parameters in real time: voltage, current, current power, and operating time. The app provides consumption reports on a daily, monthly, and semi-annual basis. The ability to configure rates per energy unit in different tariffs facilitates direct calculation of electricity expenses.

Type F plug and socket standard
The SONOFF S61STPF plug is equipped with a standard Type F (Schuko) connector with two side grounding clips, commonly used in electrical installations in Europe.

Technical specification
- Model: S61STPF (S61s Gen2)
- Microcontroller (MCU): BK7238
- Input / output voltage: 100–240 V AC ~ 50/60 Hz
- Maximum load current: 16 A
- Maximum load power: 3840 W
- Standby power consumption: <0,5 W
- Voltage measurement accuracy: ±1%
- Current measurement accuracy: ±2%
- Power measurement accuracy: ±3,5% at ≥100 W, ±3,5 W at <100 W
- Wireless connectivity: Wi-Fi IEEE 802.11b/g/n 2,4 GHz
- Supported protocol: Matter
- Housing material: polycarbonate (PC) with V-0 flammability rating
- Dimensions: 56 × 50 × 84 mm
- Net weight: 86 g
- Operating temperature: -10°C to 40°C
- Operating humidity: 5–95% RH (non-condensing)
- Color: white

Package contents
- SONOFF S61s (S61STPF) smart plug – 1 pc.
- User manual – 1 pc.
Frequently Asked Questions (FAQ)
- Does the plug work with all electrical devices?
The device works with most appliances that have a mechanical on/off switch (e.g., lamps, fans, drip coffee makers). Appliances with an electronic switch may enter standby mode after power is restored and require manual activation. - Does the plug need to be in the same room as the voice assistant?
No. Communication with assistants such as Amazon Alexa or Google Assistant takes place via the cloud or the Matter protocol. It is sufficient that the devices are connected to the network. - Can a power strip be connected to the smart plug?
This is not recommended. Connecting multiple devices to a power strip creates a risk of unintentionally exceeding the permissible load of 16 A (3840 W) and damaging the plug. - What is Matter and what benefits does it provide in the S61s model?
Matter is a universal smart home connectivity standard enabling direct communication between devices from different manufacturers in apps such as Apple Home, Google Home, Amazon Alexa, SmartThings, or Home Assistant. - Which ecosystems does the SONOFF S61s work with?
Thanks to Matter support, the plug works with Apple Home, Google Home, Amazon Alexa, Home Assistant, and Samsung SmartThings. - Will the operation of the smart plug increase electricity bills?
No. The plug's own power consumption in standby mode is less than 0,5 W, which is a negligible value in the energy balance.



