Model 536B is a tri-axial accelerometer permitting simultaneous vibration monitoring and shock measurements. 536B combine three annular shear crystal sensing elements which exhibits excellent output stability over time. The accelerometer incorporates special internal circuit in (3X)three-wire signal system which powered by voltage excitation and output with voltage signal. Excellent electrical design enables the low current consumption that ideal for wireless device with battery power supply. Signal ground is isolated from housing and internal shielded. Polarity inversion protection for the amplify circuit is inherent in the circuit design. The aluminum construction provides a lightweight water-proof housing. Integrated cable is reliable for field mounting and electrical connection. Compact configuration is fit with most of the testing object. The 536B provides wide frequency response, which is ideal for dynamic vibration and shock measurement especially for lightweight structures.