Siemens 544-343-18 SKU: 544-343-18 $89.21 $234.76 (0)No Reviews yet Quantity -+ Add to Shopping Cart Limited Factory Stock Details Duct Averaging Temperature Sensor, 18" Rigid Probe, 1k Ohm Platinum RTD (375a) Thermistor, -40 to 180 Deg F (-40 to 82 C), 2×4" Electrical Box, 5-Year... Data Sheet Installation Instructions DetailsData SheetInstallation Instructions Back Duct Averaging Temperature Sensor, 18" Rigid Probe, 1k Ohm Platinum RTD (375a) Thermistor, -40 to 180 Deg F (-40 to 82 C), 2×4" Electrical Box, 5-Year Warranty ( Minimum Siemens order quantity of $250.) Back Back Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review