Models 6243M3 and 6243M4 piezoelectric accelerometers are designed specifically for use in extremely high temperature environments such as aircraft and ground-based gas turbines. These accelerometers are designed for continuous operation at +1200˚F (+650˚C) and intermittent operation up to +1400˚F (+760˚C). The small size and light weight of these accelerometers facilitate installation in cramped locations with minimal structural support.