The Att-Off packs a lot utilty into a single tile. It uses a dual-concentric pot to give you access to a pair of useful functions: DC offset and attenuation. Additionally, the Tile is normalled so that it will act as a DC voltage output when nothing is plugged into the input.
You can use the Att-Off to convert between bipolar and unipolar signals, for example feeding a +/-5V LFO into a 0-5V CV input. Add around 5V of offset to bring the LFO to a 0-10V swing, then attenuate down to 0-5V.
Convert unipolar to bipolar or vise versa
Two optional DC offset ranges: unipolar (0 to 8V) and bipolar (-5V to 5V)
Two optional attenuation/gain options: unity gain (1:1 output to input) and 2x gain (2:1 output to input)