Asus WS101 Smart Home Open/Close Sensor

 
Monitor OPEN/ CLOSE state of your devices, Small form factor 
 
Provide SECURITY scenario by Home Action (WHEN A THEN B) function such as triggering a Siren 
 
Provide AUTOMATION scenario by Home Action (WHEN A THEN B) function such as triggering smart Plug 
 
Long battery life (> 2 years)