Chart Recorders

Chart recorders measure pressure and/or temperature over time and record the data on a round paper chart. Chart recorders are often used with:

  • Recommissioning a pipeline
  • BOPs
  • Valve and vessel testing
  • Testing pressure of systems
  • Hydro Testing


Committed to Excellence

Tech Cal manufactures and sells only authentic Tech Cal Recorders, which are built with American-made parts at our facility in Houston.

Tech Cal Recorders are built in the USA with parts made in the USA.

We offer a variety of pressure and temperature ranges, which are:

  • Calibrated to 0.5% of full scale
  • Available in a variety of case colors
  • Ready for delivery in as little as 2 days

  • open
  • front
  • back

Tech Cal operates a well-equipped, fully-stocked manufacturing facility that allows for speedy order turn around. Tech Cal maintains a large stock of chart paper and pens in a variety of sizes, rotations and colors.


We care about making quality products that are efficient, fast, convenient and easy to use. Our 1 year warranty on Tech Cal Recorders protects you from any manufacturer defects.