The WH57 is a wireless sensor that requires a compatible gateway or console to connect to your home network and transmit data. Specifically, the WH57 needs a gateway like the GW1000, GW1100, or GW2000 to connect to WiFi and send data to apps or online services. Hence why it is the perfect companion for the WittBoy that comes with the gateway.
Varies dependant upon quality of batteries used, distance of transmission, etc. but you can expect between 12 months and as high as 18 months. I went for Energizer Lithium Ultimate so I’m not expecting to change then a long time 😊
