Choose from our line of instuments:
C02 Pro GTD Pro 02 Pro N2 Pro

CO2 instruments

The PSI CO2-Pro provides stability and accuracy in an instrument for the measurement of CO2. It is designed to be plug-and-play and is highly reliable and low cost. The calibration of the CO2-Pro is factory programmed into EPROM and incorporates an automatic zero function that is user programmable.

Gas Tension Instruments

The PSI GTD-Pro (Standard and Hurricane models) was designed to meet the needs of an evolving research community of marine and environmental scientists. Both the Standard GTD-Pro and Hurricane GTD-Pro (HGTD) are highly accurate, stable, and precise, and are designed to be user-friendly, lightweight, and affordable.