Siemens QAM2020.750 Series Duct Averaging 24' Temp Sensor, 1K Ohm Nickel at 32 Deg F

Siemens QAM2020.750 Series Duct Averaging 24' Temp Sensor, 1K Ohm Nickel at 32 Deg F. Siemens QAM2xxx Duct Temperature Sensors, Duct Averaging and Probes. 18" rigid probe, 4" and 8" duct probe and 8-16-24' duct averaging with 1K or 10K Ohm Nickel or Platinum.