The KMC STE-1400 Series, Type III, 10000 Ohm Thermistor Temperature Sensors are Available in Different Housings for Surface, Duct, Duct Averaging, Immersion, Strap-on, and Outside Air Applications. All Probes are Constructed to Provide Good Heat Transfer and Fast Response. The Averaging Sensors are Available in Both Plenum-Rated Cable or with Copper Tubing. The STE-1411 Averaging Duct Sensor Incorporates Numerous Sensors Inside a Copper Tube and is Available in a 5/16-Inch O.D. Bendable Copper Probe. The Completed Assembly Acts as a Single Sensor and Any Temperature Change is Averaged Across the Sensor. The Probes can be Bent to Fit Any Size Duct.