Description:  Wi-Fi smart dual relay switch module that is installed behind any standard switch to transfer it into a smart switch for wireless remote control with mobile devices or voice command. Unifying your home appliances into an integrated wireless network to make them communicate with one another which is convenient for you to manage and control, including lights, home appliances and motorized facilities like roller shutters, window shades, blinds, awning, etc.  Three working modes available. DUALR3 comes with switch mode, motor mode and meter mode.One of the typical features is roller shutter and window shades smart control in the motor mode. The switch module offers the ultimate flexibility for your roller shutter and window shades by app remote control and scheduling timed events no matter whether you are home or away.  Double two-way control. The double relay switch module distributes the load to two inputs compared to the simple relay, which this working mechanism lets you have two-way control for two devices independently.    Specification:  DIN-Rail: 35mm;  Casing material: PC V0;  Input/Output: 100-240V AC 50/60HZ;  Dimension: 54 x 49 x 24mm;  Motor Load: 10-240W/1A;  Working temperature: -10℃-40℃;  Wi-Fi: IEEE 802.11 b/g/n 2.4GHz;  Resistive Load: 2200W/10A/Gang; 3300W/15A/Total;    Package included:  1 x Wi-Fi smart dual relay switch module 1 x User manual 1 x Box