Siemens QFM81.2 SKU: QFM81.2 $152.15 $400.40 (0)No Reviews yet Quantity -+ Add to Shopping Cart Limited Factory Stock Details Duct Hygrostat, 15 to 95% RH, SPDT, External Setpoint Dial, 5-Year Warranty ( Minimum Siemens order quantity of $250.) Data Sheet Installation Instructions DetailsData SheetInstallation Instructions Back Duct Hygrostat, 15 to 95% RH, SPDT, External Setpoint Dial, 5-Year Warranty ( Minimum Siemens order quantity of $250.) Back Back Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review