General description This Tuya Smart Switch 4G LTE Relay with 433Mhz is a versatile wireless switch that supports both inching and self-locking modes. It allows users to remotely control connected home appliances or devices through the Smart Life app, providing convenience and flexibility in managing your home environment. Technical specifications Input voltage: AC 85-250V / USB 5V Max current: 10A Wireless: 4G-LTE Working temperature: -20 to 70°C Working humidity: ≤80% Color: White Material: ABS Measurement allowed error: +/- 1-3cm Compatibility and accessories Requires a 4G SIM card (not included) Supports most European SIM cards and SIM cards in Russia Compatibility with SIM cards from other regions is not guaranteed Installation No programming needed for 4G control Two wiring options available for inching mode Inching time can be set via the app Usage Remotely turn on/off connected devices in self-locking mode Control devices from anywhere using the Smart Life app