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Bios Products

The Bios portfolio of products offers the best in flow calibration across a broad spectrum of applications, from the industrial workplace and field locations to the most sophisticated process control systems and analytical laboratories.

All Bios flow devices are based on our proprietary DryCal® technology. Our innovative dry piston technology eliminates the need for messy, cumbersome bubble provers - and offers the superior accuracy, reliability and ease of operation that has made Bios products the first choice of flow professionals worldwide.

Learn more about the entire range of Bios products. Click on the links below to find out more. And visit the Application Notes under the Using Your Device tab to see how different flow professionals use Bios products for a variety of flow needs.

Click on the links below to find our more.

  • Defender™ Series — volumetric primary standards for professionals in the occupational health and safety industry.

  • Definer™ 110 — compact and indestructible EPA flow transfer standard.

  • Definer™ 220 — volumetric and standardized primary flow meter for the environmental compliance and process measurement communities.

  • Definer™ 1020 — the first high flow primary piston prover.

  • Met Lab® Series — primary piston provers for the most precise, demanding gas flow applications.

  • Bios Flow Benches — offer solutions for calibration of gas flow measurement.

  • Integrator™ 110 — a universal thermal mass flow command, control and readout device.

  • Bios Optimizer™ — Windows-based calibration and automation software package.