SensorData Technologies, Shelby Township, MI, offers the BT400 series of Bluetooth noncontact, radio-coupled rotary flange torque sensors with 2.4 GHz onboard Bluetooth. The sensor measures torque up to 8000 lb.-ft. at speeds up to 15,000 rpm. Features include SAE4340 alloy steel construction; dia. from 2.5 in. to 9 in.; 0.05% nonlinearity and hyteresis; 0.02% nonreapeatability; temperature range -70°F to 170°F, with useable range -40°F to 185°F. The unit can be installed directly into a dynamometer driveline.