Smart Power Monitoring & Remote Control - Shelly 1PM Gen4 is a compact smart switch with integrated power metering, allowing real-time energy monitoring and remote control of appliances via smartphone, tablet, or PC. Operates over Wi-Fi or connects to cloud automation systems for enhanced flexibility. Space-Saving Retrofit Solution - Designed for tight spaces, it easily fits behind existing light switches or power outletsperfect for discreet retrofitting in standard electrical wall boxes without major installation work. Advanced Connectivity with Built-in Interface - Featuring Zigbee and Bluetooth support via a multi-protocol MCU, Shelly 1PM Gen4 offers secure, reliable connections. A built-in web interface enables full device configuration, control, and monitoring from anywhere with internet access.