A high-temperature vibration monitoring system, model 5334 from Dytran Instruments, can handle up to 900°F. Operating from a constant current 2-wire (IEPE) power unit, the system consists of a high temperature charge mode accelerometer and an in-line miniature differential charge amplifier. The accelerometer is connected to the input of the charge amplifier via an 18-inch long hard line cable (SIO2 insulated). It has a 3-bolt mount, and is able to operate at temperatures up to 900°F. Priced at $2,150.