High frequency accelerometer capable of sensing a wide range of vibration frequencies and is ideal for use on a variety of machines. A built-in amplifier provides a high level, low impedance output for connection to a Metrix signal conditioner for 4-20 mA output or to a vibration input monitor for relay output. This high frequency accelerometer consists of a temperature stabilized piezo-electric sensor and an amplifier packaged together in a stainless steel case, from which the sensing circuit is electrically isolated. A choice of mounting studs is available.