This month Sonoff is giving away a Sonoff DW2-RF door/window sensor. This device can be paired to a RF bridge (e.g. the Sonoff RF Bridge) and can be used in scenes e.g. to turn on a light when you close a door. Sonoff decided to use Gleam from now on for their giveaways. It is quite a friendly system to use. Check Sonoff’s Facebook post below to see how you can reach the correct Gleam URL.