Robus
Robus DOOR SENSOR CONNECT with WIFI Connectivity IP20 Robus RCDS-01
£29.84
https://www.bltdirect.com/ Go to shop Description
From Robus this product is smart device enabled and works with iOS and Android via the ROBUS CONNECT App. It can be used on doors and/or windows to activate ROBUS CONNECT devices and can be powered by micro USB or a single CR123A battery (not included). Complete with 1.2m USB cable and 3M adhesive tape