Note: 

This device is a 4G version smart switch with a built-in European SIM card, meaning it is only valid in Europe.

Data usage is valid for two years, with a top-up fee of €5 per year.

Key Features:

4G Connect: Enjoy unparalleled remote access via a 4G SIM card. No need for local Wi-Fi, offering greater flexibility and reliability for remote management.

Real-time Power Consumption: Keep a close eye on your energy consumption. The SY2 4G provides real-time monitoring of Voltage (V), Current (A), Active Power (kW), and Total Energy Consumption (kWh)

Remote ON/OFF Control: Switch your connected devices on or off from anywhere in the world using the Tuya Smart or Smart Life app.
Adjustable Current Range (1-40A): Tailored for a wide range of applications, this version supports a rated current from 1A up to 40A.

Over-Voltage & Under-Voltage Protection: Set custom thresholds. The device will automatically cut off power if voltage exceeds or drops below your preset values, protecting your valuable appliances. (e.g., Over-voltage: 220-300V, Under-voltage: 85-220V)

Over-Current Protection: Safeguard against current overloads by setting a maximum current limit (1-40A).

Over-Power Protection: Define a maximum power limit (1-26KW, based on voltage and max current) to prevent damage from excessive power draw.

Timers & Schedules: Automate your appliances by setting up countdown timers, schedules, and loop timers to fit your lifestyle or operational needs.

DIN Rail Mountable: Easy installation on a standard 35mm DIN rail.
Voice Control Compatible: Works with Amazon Alexa and Google Home (via Tuya/Smart Life app integration) for hands-free operation.

High-Quality Construction: Built with a fire-retardant shell and high-precision manganese copper for safety and accuracy.