... Characteristics and Uses KNLDSeries sensor is a measurement of a variety of torque, speed and mechanical power, precision ... electric motors, engines, internal combustion engines and other rotating torque and power output of power equipment testing;2, fans ... 200mAFrequency signal output: 5KHZ-15KHZRated torque: 10KHZ ± 5kHZ (both positive and negative bi-directional measurement value)Signal duty cycle: ...