Sonoff is a Chinese smart home and home automation brand best known for its affordable connected switches, relays, plugs, sensors, lighting products, wall switches, gateways, and controllers. The brand is operated by Shenzhen Sonoff Technologies Co., Ltd., which is based in Shenzhen, China, and is closely associated with the broader ITEAD technology organization. Sonoff focuses on enabling remote control and automation of conventional electrical appliances and homes through cost-effective hardware and software solutions.[1]

The company’s current profile describes Sonoff as an independent hardware-and-software brand specializing in smart home research and development, design, production, and marketing.[1]

Origins: ITEAD

The history of Sonoff is linked to ITEAD Studio, which was founded in 2010 with an initial focus on open-source hardware development. ITEAD later expanded into smart home hardware, with Sonoff becoming one of its primary brands.

The name Sonoff was derived from the concept of making devices “smart on and off.” According to the company’s product history, the first Sonoff product was the BASIC Smart DIY Switch, launched in 2016. The foundational concept involved inserting an inexpensive smart switching module between an ordinary electrical appliance and its power source, an approach that became a defining characteristic of the Sonoff product philosophy.

2016–2018: Establishing the brand

Early Sonoff products focused heavily on Wi-Fi-controlled switches and DIY modules. Rather than requiring the purchase of new smart appliances, these devices allowed existing lights, fans, pumps, and other electrical equipment to become remotely controllable.

In 2017, the company timeline marks the formal establishment of the Sonoff brand and Shenzhen Sonoff Technologies Co., Ltd. In 2018, Sonoff launched its dedicated sonoff.tech website and received ISO 9001:2015 certification.

2019–2021: Expansion

Sonoff expanded its portfolio beyond simple Wi-Fi relay modules to include smart plugs, wall switches, power-monitoring products, temperature and humidity controllers, RF-controlled products, lighting, sensors, Zigbee devices, and gateways. The company also increased investment in R&D and obtained certifications such as CE, FCC, RoHS, UL, and ETL for relevant products. By 2020, the company reported having more than 50 distributors worldwide.

In 2021, Sonoff joined the Matter ecosystem and began developing products aligned with newer interoperable smart home standards.

2022–present: Ecosystem strategy

Sonoff has shifted from being primarily a manufacturer of inexpensive Wi-Fi switches toward building a comprehensive smart home ecosystem. Current product strategies encompass Matter, Zigbee, Wi-Fi, eWeLink-Remote, central control panels, sensors, security products, energy monitoring, and integration with third-party platforms.[1]

A 2025 company brochure reports that Sonoff had more than 200 employees in 2024, with over half engaged in professional technical or R&D work. It also notes that the company held more than 100 patents as of 2022.[2]

The Sonoff product range has expanded significantly from its original DIY relay offerings.

DIY smart switches

This category remains strongly associated with the Sonoff brand. These small modules are installed behind or inside existing electrical devices to make conventional appliances or lighting circuits smart. Examples include the MINI series and various relay modules. Typical functions include remote ON/OFF control, scheduling, countdown timers, automation, device sharing, voice control, local control on supported products, and power monitoring on applicable models.

For example, the Sonoff RFR2 combines Wi-Fi control with a 433-MHz RF receiver and can be installed directly into the power connection of an ordinary appliance.[3]

Smart wall switches

Sonoff produces complete wall-switch products in addition to hidden modules. These include the TX series, T series, NSPanel, and other touch and scene-control switches. The NSPanel is particularly significant as it functions as a wall-mounted control interface for smart home scenes and devices rather than a simple switch. Sonoff describes the NSPanel as a smart scene wall switch and reports that its Kickstarter campaign raised more than RMB 2 million.[1]

Smart plugs

Sonoff smart plugs allow ordinary appliances to be controlled without modifying internal wiring. Typical applications include lamps, fans, chargers, small appliances, holiday lighting, and home-office equipment. These devices serve as an accessible entry point into the Sonoff ecosystem.

Smart lighting

The brand has expanded into connected lighting, including smart bulbs, LED strips, RGB/RGBIC lighting, lighting controllers, dimmers, and lighting switches. The official store currently lists multiple lighting products alongside switches, plugs, and sensors.[1]

Sensors

Sonoff manufactures a variety of sensors, particularly within its Zigbee ecosystem. Examples include temperature sensors, humidity sensors, motion sensors, door/window sensors, wireless switches, and environmental sensors. These devices serve as triggers for automation routines, such as activating lights upon motion detection or turning on fans when temperatures exceed a set threshold.

Energy monitoring

Electrical energy monitoring is a key product category. Products such as the POW series combine switching capabilities with the measurement of electrical parameters. This allows users to track electricity consumption rather than simply controlling device power states, supporting energy management and home automation applications.

Gateways and Zigbee devices

Sonoff has developed a substantial Zigbee ecosystem. A typical configuration involves Zigbee sensors connecting to a Sonoff Zigbee gateway, which then interfaces with eWeLink or other smart home platforms. Zigbee is particularly suitable for battery-powered sensors due to its low-power, mesh-networked architecture. Sonoff offers Zigbee gateways, switches, and sensors while supporting integration with external home automation systems.[1]

Security and environmental products

The product portfolio has expanded to include security cameras, environmental monitoring devices, temperature/humidity monitors, home-safety automation tools, and other smart home accessories. This diversification positions Sonoff as a broader smart home platform rather than solely a smart switch manufacturer.

eWeLink is the proprietary software ecosystem used to configure and control compatible Sonoff devices. It provides functions including device setup, remote control, scheduling, countdown timers, scenes, automation, device sharing, energy monitoring on supported products, and integration with other smart home platforms. Support documentation specifically identifies eWeLink functions such as timers, scenes, and device sharing.

The combination of Sonoff hardware and eWeLink software constitutes the core of the brand’s smart home ecosystem strategy.

Sonoff supports multiple communication protocols rather than relying exclusively on Wi-Fi.

Wi-Fi

Wi-Fi was central to early Sonoff products. Advantages include the lack of a dedicated hub requirement for many devices, easy smartphone control, familiar networking technology, and suitability for mains-powered devices. However, large numbers of Wi-Fi devices can place additional load on home networks.

Zigbee

Sonoff subsequently developed a significant Zigbee product ecosystem. This protocol is especially useful for sensors, battery-powered devices, mesh networks, and deployments involving large numbers of low-power devices. Sonoff promotes Zigbee integration with home automation systems and gateways.[3]

Matter

Matter is a newer technology in the Sonoff ecosystem designed to improve interoperability between smart home platforms. Sonoff has introduced Matter-compatible products and positioned this standard as a key component of its future ecosystem strategy.[1]

eWeLink-Remote

Sonoff developed eWeLink-Remote as a local, longer-distance control solution. Current materials describe a range of up to approximately 100 metres under appropriate conditions.[3]

Compatibility beyond the proprietary ecosystem is a major feature of Sonoff products. Supported integrations include Amazon Alexa, Google Home, Samsung SmartThings, IFTTT, Home Assistant, Zigbee2MQTT, and Matter-compatible platforms. Official integration documentation lists Alexa, Google Home, SmartThings, IFTTT, and Home Assistant among supported ecosystems.[3]

This compatibility allows Sonoff hardware to function as part of larger automation systems rather than being locked exclusively into eWeLink.

Sonoff has developed a strong following among DIY smart home enthusiasts. Home Assistant users can integrate compatible Sonoff devices, particularly Zigbee hardware. Notably, the Sonoff Zigbee 3.0 USB Dongle Plus is identified by Sonoff as officially recommended hardware for Home Assistant.[1]

This flexibility appeals to two distinct audiences: beginners who use eWeLink for simple phone-based control, and advanced users who incorporate Sonoff hardware into Home Assistant, Zigbee2MQTT, Matter, or custom automation environments.

The term DIY is central to understanding Sonoff. While traditional smart home products often require replacing existing appliances with expensive smart versions, Sonoff’s approach typically involves adding a module to an existing appliance to make it smart. For example, a traditional ceiling light can be made smart via a Sonoff relay, enabling smartphone, automation, or voice control at a fraction of the cost of replacement. Official product descriptions explicitly position DIY switches as a method to modernise conventional appliances.[1]

Sonoff products support a wide range of automation projects:

• Home lighting: Automatic hallway lights, scheduled outdoor lighting, motion-activated lights, and remote control of ceiling lights.
• Appliances: Control of fans, lamps, pumps, air conditioners (where appropriate), and kitchen appliances (subject to electrical and safety requirements).
• Energy management: Monitoring appliance consumption, automatic equipment shutoff, identification of high-energy devices, and load scheduling.
• Security: Door/window monitoring, motion detection, automated lighting, and remote appliance control.
• Environmental automation: Temperature-controlled fans, humidity-controlled equipment, greenhouse automation, and water-pump control.
• Advanced automation: Complex routines such as motion sensors triggering Home Assistant to activate Sonoff relays, or temperature sensors driving ventilation fans via automation.

Sonoff occupies a distinct position between consumer smart home products and technical DIY home automation. It is neither solely a traditional electrical equipment manufacturer nor exclusively a hobbyist electronics company. Products range from simple remote-control solutions for individual lamps to components for complete Zigbee, Matter, or Home Assistant automation systems.

Comparison with traditional smart home brands

Factors contributing to the brand’s popularity include low cost, a broad product range, DIY-friendly design, multi-protocol support, a large enthusiast community, and extensive third-party integration.[3]

Although Sonoff products are marketed as DIY-friendly, many devices are mains-voltage electrical equipment. Installation can involve potentially dangerous voltages. A product’s small size or low price does not imply it is electrically safe for casual experimentation. Installation must adhere to voltage/current specifications, wiring diagrams, local electrical codes, and applicable safety requirements. For fixed mains wiring, engaging a qualified electrician is recommended.

This caution is particularly relevant for high-current loads, motors, heaters, pumps, air-conditioning equipment, distribution-board or DIN-rail installations, and installations lacking a neutral wire.

ITEAD functions as the technology and company organization, while Sonoff serves as the smart home brand. ITEAD’s website describes itself as the official online store for Sonoff, Nextion, and Airspy, while Sonoff’s company profile identifies Shenzhen Sonoff Technologies Co., Ltd. as the manufacturer and brand organisation.[1] The official ITEAD site identifies its corporate copyright as ITEAD Intelligent Systems Co., Ltd.[3]

Sonoff summarises its mission as “Making Life Easier,” aiming to provide accessible smart home automation without unnecessary expense or complexity.[1] In practical terms, the philosophy centres on making ordinary devices smart, democratising automation, and providing users with greater control over their homes. This explains the company’s evolution from inexpensive smart relay modules to a complete ecosystem.

As of 2026, Sonoff has evolved considerably from its original single-purpose Wi-Fi switch concept. Its ecosystem now encompasses smart switches, DIY relay modules, smart plugs, wall switches, scene controllers, smart lighting, Zigbee devices, sensors, gateways, energy-monitoring equipment, security cameras, environmental monitoring tools, Matter-compatible products, eWeLink software services, and integrations with Home Assistant and other third-party platforms.

Sonoff currently states that its products and ecosystem reach 150+ countries and areas, with approximately 15 million global users and 30 million units shipped.[1]

1. About Us
2. 2025 SONOFF Product Brochure -V2025.9.1
3. SONOFF RFR2 – WiFi Wireless Smart Switch With RF Receiver For Smart Home | ITEAD STUDIO OFFICIAL