Description Sonoff Mini R4 Extreme Wi-Fi Smart Switch MINIR4 Smallest Wi-Fi Smart Switch Ever! The Sonoff MINIR4 is a mini extreme Wi-Fi smart switch, that turns traditional switches into smart switches, automating lights and electronic devices. However, it’s tiny size allows it to fit into various mounting boxes, including the smallest EU-type/86 type/120 type mounting box. The MINIR4 supports external switch control and easily connects to the momentary switch, door exit switch, SPDT switch, latching switch, and even dry contact sensors. Features:Super Tiny Size – Its compact size allows it to be installed in various mounting boxes, including the smallest European standard.External Switch Control – Easily connect to the momentary switch, door exit switch, SPDT switch, latching switch, and even dry contact sensors.Detach Relay Mode- The “detach relay” mode in the MINIR4 separates the states of the external switches and relay, thus preventing the operation of the external switch button from affecting the relay state. NRCS and Icasa approved.
