AC Infinity Controller Sensor ProbeController Sensor Probe, 20' Corded Climate Detector A corded sensor designed for use with AC Infinity universal controllers in HVAC and grow applications. Engineered with Swiss made thermal alloy probe heads offering precise temperature and humidity measurements. Adapts to rapid climate fluctuations using SAE grade 316 steel to provide up to the minute readings. Long lasting IP 44 build protects against interference resulting from splashing water and