Sonoff Basic R4 General Electrical or home automation system

or home automation system

such as turning on fans or heaters

It accurately displays real-time voltage

This switch is often chosen for its stability and capabilities in demanding smart home environments

and controlling scenes

Sonoff Basic R4 General Electrical or home automation systemThe Sonoff Wi Fi DIY Smart Switch is designed for makers and enthusiasts, offering flexible smart control with an emphasis on customization. It connects to your Wi Fi network and can be flashed with custom firmware (like Tasmota or ESPHome) for advanced integrations and local control, providing versatile smart automation capabilities for various projects.