Technology & Calibration, Inc., doing business as Tech Cal, is a Houston-based ISO/IEC 17025-accredited calibration company and manufacturer of mechanical chart recorders. Serving industrial customers since 1984, Tech Cal provides calibration for pressure gauges, pressure transducers, vacuum and differential pressure instruments, torque wrenches, load cells, select temperature instruments, and chart recorders. The company also offers chart recorder manufacturing, equipment repair and refurbishment, rentals, chart paper, replacement parts, and recorder supplies for oil and gas, pipeline, petrochemical, manufacturing, aerospace, and field service applications.