The Sonoff MINI-ZB1GSP, also known as the MINI ONE PM, is a compact single-channel smart switch from the MINI Extreme Series Gen5 designed for indoor concealed installation within a switch junction box. Operating on the Zigbee 3.0 protocol, this device allows you to transform traditional lighting or appliances into smart ones while supporting both toggle and momentary external switches. It handles a maximum resistive load of 16A within a voltage range of 100-240V, making it versatile for various home electrical setups. One of its most practical features is the integrated real-time energy monitoring, which lets you track voltage, current, power, and total consumption through the eWeLink app. The device also acts as a Zigbee signal repeater, helping to extend the stability of your smart home network. Its small white and green PC housing measures just 39.5 × 33 × 16.8mm and weighs 27.3g, ensuring it fits into tight spaces without complicating the wiring process, provided you use copper conductors between 0.75mm² and 2.5mm². For those who prefer hands-free operation, it supports voice control and an inching mode for temporary activation. You can manage everything remotely via your smartphone or through compatible gateways like the ZBBridge-P, NSPanel Pro, or iHost. A simple blue LED indicator and a physical button for pairing and resets make the initial setup straightforward for any user looking to add precise power management to their living space.