All Jewell force-balanced (servo) precision accelerometers are fully self-contained. They connect to a DC power source and a readout or control device for a complete operating system. The output is a high-level DC signal proportional to acceleration and tilt angle sine from as little as ±0.010g to ±20g full range. Jewell precision accelerometers respond to change in velocity as small as 1µg. Hysteresis less than 0.0005% of full range output and vibration rectification less than 50µG/G2 are available. They also offer a range of angular accelerometers capable of measuring up to +/- 1000µradian/second2.