The ACI Connection Head Probe Series features a 1/4 Inch diameter stainless steel probe with two, 14 or 24 inch 22 AWG Etched Teflon colored lead wires to differentiate the different sensor types. ACI offers the probe with double ended  ½ Inch NPT Threaded connections. This provides connections to existing service entry boxes. The sensors in this series are manufactured using ACI€™s proven double encapsulation process to eliminate the effects of moisture upon the sensors and to increase the thermal response time using our high quality, thermally conductive epoxy.