Siemens 544-343-24 SKU: 544-343-24 $90.73 $238.75 Quantity -+ Limited Factory Stock Details Duct Averaging Temperature Sensor, 24" Rigid Probe, 1k Ohm Platinum RTD (375a) Thermistor, -40 to 180 Deg F (-40 to 82 C), 2x4" Electrical Box, 5-Year... Data Sheet Installation Instructions DetailsData SheetInstallation Instructions Back Duct Averaging Temperature Sensor, 24" Rigid Probe, 1k Ohm Platinum RTD (375a) Thermistor, -40 to 180 Deg F (-40 to 82 C), 2x4" Electrical Box, 5-Year Warranty Back Back Stocked items ship in 1 business day. Factory items typically ship in 3-5 business days (estimate only). Actual times may vary.Email sales@energycontrol.com for more information.