Capacitec Inc., Ayer, MA, offers capacitive noncontact displacement sensors that are capable of operation in extreme temperature environments, to >900°C. The sensors have a range of 0.050 in., are 1.00 in. in diameter, and provide 0.5% F.S. accuracy with 0.025% F.S. resolution. Applications include windshield and float glass production, dynamic testing of truck and auto disc brakes, jet engine thermodynamic testing, power generation rotor/shaft motion dynamics and crack propagation studies, and rigid and flexible solar panel production.