Primary gas flow calibrators for air sampling pumps, mass flow controllers, mass flow meters, and environmental sampling.

Defender 510 & 520 DryCal

Defender 510 & 520

Defender 510 & 520Accurate, Reliable & Portable Primary Calibratorsfor Fast Calibration of Air Sampling PumpsBacked by Pro...

Learn more
Defender 530+ DryCal

Defender 530+

Defender 530+ Laboratory & Field Ready Primary Calibrators for Process Control, Manufacturing & Environmental Applicatio...

Learn more
DryCal 1020 & 1500 DryCal

DryCal 1020 & 1500

Primary Flow Calibration Standard For High Capacity Gas Flow This powerful calibrator, featuring our patented proven DryCal® T...

Learn more
DryCal 800 DryCal

DryCal 800

High-Precision Primary Flow Standards For Laboratory and Industrial Process Control ApplicationsAs a replacement for the ML-800 b...

Learn more
FlexCal Series DryCal

FlexCal Series

Highly Accurate Portable Gas Flow CalibratorMesa Labs’ newest standardized and volumetric primary flow standard offers easy-to-nav...

Learn more
ML-800 Series Expansion DryCal

ML-800 Series Expansion

The Met Lab Series of high-precision primary flow standards offers exceptionally low uncertainties to meet the most stringent la...

Learn more
DryCal, Products