The Kele TT-470 Series solid state tilt transducer is a programmable, 2-wire, 4-20 mA loop-powered device specifically designed to provide positive feedback of damper or valve position to a building automation system. The transducer is quickly and easily field programmed, using an integral pushbutton, to span any shaft rotational range between 10 degrees and 360 degrees (one full rotation). The TT-470 contains no mercury or other hazardous substances and meets or exceeds all current RoHS environmental standards. The transducer includes an integral crankarm style mounting bracket and is available in 2 models. The TT-470 fits a 1/2 in shaft and the TT1-470 fits a 1 in shaft. The transducer must be mounted on a horizontal shaft, typically a damper shaft or a globe valve linkage shaft (for example the Honeywell Q5020 linkage).