Sonoff S-MATE smart switch Enjoy even more convenient operation of your smart devices. Mount the Sonoff S-MATE switch in a box with an ordinary wall switch and then pair it with another switch such as the MINI R3 (sold separately). This will give you the ability to remotely control the connected device, even if there are problems with the Internet connection. The product is compatible with 1/2/3-button switches, and you only need a CR2032 battery to power it. Convenient device control Pair the MINI R3 switch with S-MATE to control it locally using the eWeLink-Remote signal. The product allows you to control the equipment paired with it in 2 ways. It works with 1/2/3-button switches, so you can use one button to turn the device on/off and the others to activate scenes in the eWeLink app. The range of S-MATE is up to 50m. Easy to install and configure Mounting the device will not cause you any problem. All you need to do is place it in the switch box. What is more, the product is powered by CR2032 batteries, so it does not require the use of a neutral wire (N). This makes it ideal also for "old type" installations. Note: for proper operation of the S-MATE a switch such as MINI R3 is required, which can be purchased separately. Specification Brand Sonoff Model S-MATE Power supply 1x CR2032 (3V) battery Material (shell) PC V0 Input 100-240V ~50/60Hz 16A max. Output 100-240V ~50/60Hz 16A max. Operating temperature -10°C-40°C Dimensions 54x45x24mm .table-wrapper{width:100%;overflow-x:auto}.table-wrapper>table{border-spacing:0}.table-wrapper>table>tbody>tr>td,.table-wrapper>table>tbody>tr>th{padding:10px 35px;text-align:left}.table-wrapper>table>tbody>tr>th{vertical-align:top}.table-wrapper>table>tbody>tr:nth-child(even){background-color:#f7f7f7}