Check the listing for details. Duct Air Temperature Sensor Model T-42S United Technologies NOS. Condition: New – Open box. Listed at 89.95 USD. You are bidding on: United Technologies Duct Air Temperature Sensor Model T-42SSENSOR APPLICATIONS• Measurement of duct temperature in:• Supply/return air ducts• Variable air volume (VAV) systems• Multi-zone systemsTHERMISTOR SPECIFICATIONSZero power resistance: @ 25°C, 10K + .8%Resistance ratio: R @ 0°/R @ 70°C, 14.82Dissipation constant: 1.352 mWatt/°CThermal time constant (τ ): 17.8 seconds (transverse to water flow @ 3 fps; 63.2% stepchange)Temperature range: -20 to 250°F (-29 to 121°C)The T-42S Duct Air Temperature Sensor consists of:• (1) 6" duct air temperature sensor• (2) No. 10 sheet metal screws• (2) No. 6-32 machine screws• (2) Wire nuts NOS in open box. Box was opened for inspection and photos Came from a surplus auction, you can check out the large selection of industrial items in my eBay store.Please see all photos and ask any questions BEFORE purchasing.Check out Industrial in my eBay store! "FREE SHIPPING"Please check back on a regular basis, as I list new items daily!HAPPY BIDDING!51018/db warehouse 111019db (16M)