Home / Wiring / SIT-6E What gauge wire should be used for the SIT-6E? SIT-6E 12 AWG 3-wire jacketed cable should be used when extending over 500’ from the controller up to 2000’ 18 AWG 3-wire jacketed cable should be used up to 500’ Underfloor Heating Thermostats Heated Floors Further Questions? Miscellaneous questions - Why is my sensor still activated when it stopped snowing? - At what temperature does the SIT-6E sensor activate? Installation - How far from the controller can the SIT-6E sensor be placed? - Installing the SIT-6E Wiring - What gauge wire should be used for the SIT-6E? - Is the SIT-6E sensor high or low voltage?