EREL-16WiFi ENGO Controls 16A WiFi Smart Relay Voltage-Free Tuya Compatible
ENGO EREL-16WiFi WiFi Smart Relay 16A — Wireless WiFi smart relay for control of heating, circulation pumps, lighting, fans, gates & other 16A loads | No internet gateway required | Direct 2.4 GHz WiFi connection | Input for additional EFS300 temperature sensor | Create scenarios & rules in ENGO Smart app (Tuya Cloud) | Voice control with Alexa & Google Home | Voltage-free NO/COM output | Ideal for boiler, pump, lighting & smart home automation | Compact design
✅ Easy WiFi control without gateway – perfect for boiler, pump, lighting & smart home automation
Connects directly to your 2.4 GHz WiFi network. Control via ENGO Smart app or voice assistants. Supports temperature sensor input for automated rules. Voltage-free relay output – safe for any 16A load. Compact & easy to install behind switches or in junction boxes.
The ENGO EREL-16WiFi is a powerful WiFi smart relay that lets you wirelessly control high-power loads up to 16A – ideal for boilers, circulation pumps, lighting, fans, electric gates and other appliances. It connects directly to your 2.4 GHz WiFi network – no separate internet gateway or hub is required.
Using the free ENGO Smart app (Tuya Cloud technology), you can create schedules, scenarios and automation rules – for example, turn on heating based on temperature from the optional EFS300 sensor. Voice control is supported via Alexa and Google Home. The voltage-free NO/COM relay output makes it compatible with virtually any 230V AC device. Compact size allows installation behind existing switches or in small junction boxes. Reliable, secure and easy to set up – perfect for modern smart home, boiler control or off-grid applications.
What Makes the EREL-16WiFi Special?
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Direct WiFi Connection — No internet gateway or hub needed – connects straight to your 2.4 GHz WiFi network.
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16A Voltage-Free Relay — Controls boilers, pumps, lighting, fans, gates & other high-power loads safely.
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Temperature Sensor Input — Supports optional EFS300 sensor for smart temperature-based automation.
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ENGO Smart App — Create schedules, scenarios & rules in the free Tuya-based ENGO Smart app.
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Voice Control — Works with Alexa & Google Home for hands-free operation.
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Compact & Easy Install — Small size fits behind switches or in junction boxes – no extra wiring hassle.
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Reliable & Secure — Stable WiFi communication with local control – no cloud dependency for basic operation.
Key Features
WiFi 2.4 GHzDirect wireless connection – no gateway required.
16A Relay OutputVoltage-free NO/COM – safe control of any 230V load up to 16A.
EFS300 Sensor InputAdd temperature sensor for smart heating/pump automation.
ENGO Smart AppSchedules, scenarios & rules via Tuya Cloud technology.
Alexa & Google HomeVoice control for hands-free operation.
Compact Design46 × 46 × 24 mm – fits easily in standard electrical boxes.
230V AC SupplyStable operation with built-in power supply.
Technical Specifications
| Specification |
Value |
| MPN |
EREL-16WiFi |
| Power Supply |
230V AC 50Hz |
| Max Load |
16A resistive |
| Relay Output |
Voltage-free NO/COM (SPDT) |
| Communication |
WiFi 2.4 GHz (direct) |
| Additional Input |
Voltage-free contact or EFS300 temperature sensor |
| App & Voice Control |
ENGO Smart app (Tuya), Alexa, Google Home |
| Dimensions |
46 × 46 × 24 mm |
| Operating Temperature |
-10 °C to +40 °C |
What's in the Box
✔ 1 × ENGO EREL-16WiFi WiFi Smart Relay
✔ Installation & wiring guide
✔ Quick start instructions for ENGO Smart app pairing
✅ Requires 2.4 GHz WiFi network. Voltage-free output – safe for any 16A load. Supports optional EFS300 temperature sensor for advanced automation. Installation by qualified electrician recommended. Works with ENGO Smart app (Tuya Cloud) and voice assistants. No gateway needed – direct WiFi connection. For full remote control, stable internet is recommended.
Frequently Asked Questions
Do I need a gateway or hub? No – the EREL-16WiFi-3 connects directly to your 2.4 GHz WiFi network. No additional gateway is required.
What loads can it control? Any 16A resistive load: boilers, circulation pumps, lighting, fans, electric gates, etc.
Can I use it with a temperature sensor? Yes – it has an input for the optional EFS300 sensor to create temperature-based automation rules.
Does it work with voice assistants? Yes – fully compatible with Alexa and Google Home for hands-free control.
How do I set up schedules and rules? Use the free ENGO Smart app – create scenes, schedules and automation rules based on time, temperature or other triggers.
Is installation easy? Yes – compact size fits behind switches or in standard junction boxes. Qualified electrician recommended for wiring.
What is the difference from the Zigbee version? This WiFi model connects directly to your home WiFi – no Zigbee hub or gateway needed.
