Rotation speed: predictive maintenance requires regular verification of the rotation speed of rotating machinery. The C.A 8220, an all-in-one instrument, fulfils this need simply and efficiently. Temperature: the motors and rotating machinery currently used are equipped with temperature probes which are easily accessible on a terminal block. This makes it possible to measure the motor's internal temperature directly by simply connecting the C.A 8220 to this terminal block. The C.A 8220 is supplied with the PAT (Power Analyser Transfer) software for processing the measurements on a PC (display, analysis, etc). This software is available free of charge for download from our internet site (www.chauvin-arnoux.com/SUNSUPPORT/support).