Wiper Sensor Accessory Spectra Symbol Wiper Sensor Accessory is a simple light force actuator with 1 Newton minimum force. This wiper accessory features a variable pressure relative to thread rotations. The Wiper sensor accessory comes with a seamless interface with SoftPot and HotPot sensors. This Wiper can be used with linear SoftPots, rotary SoftPots, ThinPots, and HotPots.