All Johnson Controls® thermistors and resistance temperature detector (RTD) Stainless Steel Flush Mount Button Temperature Sensors are non-polarity and non-position sensitive. All thermistor and RTD-type Stainless Steel Button Sensors include two 22 AWG stranded, etched Teflon® wires to make all of the connections. The universal mounting kit includes one 3/8 in. - 16 in. hex jam nut, one 1 in. (25.4 mm) Delrin spacer or insulator, and one 2 in. (50.8mm) Delrin spacer or insulator.