95~250v wifi smart thermostat temperature controller for water electric floor heating gas boiler works with alexa google home

95~240v wifi smart thermostat temperature controller for water electric floor heating gas boiler works with alexa google home notes: 1. model bht-002-ga, bht-002-gb, bht-002-gc don't support wifi function. 2. model bht-002-gaw, bht-002-gbw, bht-002-gcw support wifi function. 3. all the models come with internal air sensor. but the external floor sensor is optional, only model bht-002-gb and bht-002-gb (wifi) contain the external floor sensor. description the bht- 002 range has been deve...