A.O. Smith A.O. Smith & A.O. Smith 100189284 CONTROLINTERGRATEDFTX850 MSRP: Price: 2099-12-31 $642.74 The A.O. Smith & A.O. Smith 100189284 CONTROLINTERGRATEDFTX850 is a control integrated field test instrument that is designed to measure the performance of power systems. This instrument is capable... Add to Cart Add to Cart