Model 370A is an industrial IEPE accelerometer for measuring high frequency stress wave. 370A features an annular shear ceramic crystal which exhibits excellent output stability over time. The accelerometer incorporates an internal circuit with in a two-wire IEPE system which transmits its low impedance voltage output through the same cable that supplies the constant current power. Signal ground is internal shielded and isolated from the outer case of the unit. Polarity inversion protection for the amplify circuit is inherent in the circuit design. The welded stainless-steel construction provides a hermetic housing. The standard MIL-C-5015 glass insulated connector provides long-term stability over the operating temperature range. 370A has ¼-28 threaded holes for stud mounting on the test object. 370A especially support the high frequency response(>10KHz). The sensor picks up the machine stress wave signal generated by premature wear and scale it by sensor resonance, which is ideal for gearbox and bearing detection. Senther’s model 16-L is a mating cable for the sensor