Profile: King Nutronics Corp. specializes in calibration equipment. Our product line includes air date test sets, vacuum calibrators, thermo units, tachometer testers, & torque and force calibrators. Our RVSM compliant microprocessor-driven pressure calibrator is designed to provide regulated static (Ps) and total (Pt) pressure/vacuum outputs to simulate altitudes and airspeeds (Qc) in avionic instruments. A 480-character touch panel display prompts the operator through the test and calibration process. Our model 3711-B tachometer test set is accurate to within ±0.02% of the set value throughout the 1 to 6,500 RPM operating range of the instrument. It also tests optical tachometers from 500 to 40,000 RPM in 10 RPM increments, with an accuracy of ±0.02% of the set value using the included 10:1 multiplier and adapter. Our model 3711-100-1 optical test fixtures are designed for use with the model 3711-B tachometer test set. They significantly reduce the time required for setup and aiming of the optical tachometer being calibrated.