SONOFF MINIR4 Extreme Wi-Fi Smart Switch Detach Delay Tiny Size External Switch Control Voice Control via eWeLink Alexa Google MINIR4 is a mini extreme WiFi smart switch equipped with ESP32 chip, that turns traditional switches into smart switches, automating lights and electronic devices, and tiny size fits in various mounting boxes, including the smallest EU-type/86 type/120 type mounting box. MINIR4 supports external switch control and easily connects to the momentary switch, door exit switch, SPDT switch, latching switch, and even dry contact sensors.MINIR4 has "detach relay" mode, which means the states of external switches and relay are separated, so operating the external switch button won't affect the relay state. Such as, if you open detach relay" mode, when you turn off the light, your smart light won't be offline, and you still can use App to control smart lights.MINIR4 is a smart switch with the gateway function of eWeLink-Remote.After pairing with MINIR4, MINIR4 can be controlled locally by S-MATE through "eWeLink-Remote" signal, and trigger other smart devices in the smart scene. NOTE: Now you can order one MINIR4 with eWeLink Card, welcome to consult before purchase. Mini than Ever, Adapts to Various Boxe A brand new product that turns traditional switches into smart switches, automating lights and electronic devices. Its 40% smaller than MINIR2, fits in various mounting boxes, including the smallest European standard ones. Ultra-fast ESP32 Chip The ESP32 chip is a highly sought-after solution for smart home products, boasting exceptional safety and reliability. With its speedy dual-core performance and ample memory, you can trust its ability to provide long-lasting and stable operation. Comprehensive Safety Guarantee SONOFF always prioritizes safety and designs products in strict accordance with certification requirements. Our products paed CE, FCC, and more stringent TÜV certifications. Transform Your Switches with Seamle Compatibility Easily connect to momentary switch, door exit switch, SPDT switch, latching switch, and even dry contact sensors. Detach Relay Detach Relay means the states of external switches and relay are separated, so operating the external switch button wont affect relay state. As below, the smart light wont be offline after enabling Detach Relay, and can App control smart lights. Multiple Control Method After pairing with MINIR4, both R5 and S-MATE can act as remote controllers to control MINIR4 locally through the eWeLink-Remote signal. Additional Protection -Delay Power-on State If power is restored after a power outage, set some appliances to delay the execution of the power-on state. Avoid all appliances turning on simultaneously, causing high currents to damage appliances and leaving potential safety hazards. Explore More Poibilitie *The "eWeLink Web" and "IFTTT" are part of eWeLink Advanced Plan. Smart Scene Works with motion sensors, door and window sensors, and more to automate your home.