Sonoff MINI Extreme Wi-Fi Smart Switch MINIR4 Smallest Wi-Fi Smart Switch Ever! The Sonoff Mini R4, actively transforms conventional switches into smart switches, thereby automating the control of lights and electronic devices. It’s tiny size allows it to fit into 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. Furthermore, MINIR4 is not just a smart switch; it also includes a gateway function known as “eWeLink-Remote.” Once paired with MINIR4, you gain the capability to control it locally through S-MATE, utilizing the “eWeLink-Remote” signal. Moreover, this versatile device can seamlessly trigger other smart devices within your existing smart setup. One of MINIR4’s notable features is the “detach relay” mode. This mode separates the states of the external switches from the relay, ensuring that using the external switch button doesn’t affect the relay’s status. For instance, if you activate the “detach relay” mode, turning off the light won’t disconnect your smart light. Instead, you can still manage your smart lights using the app. 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- MINIR4 has “detach relay” mode, which means the states of the external switches and relay are separated, so operating the external switch button won’t affect the relay state. eWeLink-Remote Control- MINIR4 is a smart switch with the gateway function of “eWeLink-Remote”. You can add “eWeLink-Remote” sub-devices, R5 and S-MATE, after pairing with MINIR4. Both R5 and S-MATE can act as remote controllers to control MINIR4 locally through the eWeLink-Remote signal. Safe & Reliable- TÜV, CE, and FCC certifications ensure a safer and more reliable product. Specifications: Brand: SONOFF Model: MINIR4 Wi-Fi: IEEE 802.11b/g/n 2.4GHz Input: 100-240V~50/60Hz 10A Max Output: 100-240V~50/60Hz 10A Max Casing Material: PC V0 Dimension: 39.5x33x16.8mm