MesaLabs Defender Series are the industry standard for accurate, reliable and portable Primary calibrators
3 models for 3 flow standards:
• 1% Accuracy Volumetric
• Low: 5-500ccm
• Medium: 50-5,000ccm
• High: 300-30,000ccm

Defender 510 and Defender 520

• Volumetric accuracy: ± 1% of reading
• Three flow ranges: Low: 5 – 500 ccm; Medium: 50 – 50,000 ccm; High: 300 – 30,000 ccm
• Defender 510 volumetric primary flow standard
• Defender 520 enhanced volumetric primary flow standard
• Documents temperature and pressure for enhanced audit trail.

Defender 530+

• Three flow ranges: Low: 5 – 500 ccm; Medium: 50 – 50,000 ccm; High: 300 – 30,000 ccm
• Volumetric accuracy: ± 0.75% of reading
• Primary flow standard
• Standardised accuracy: ± 1% of reading
• Swagelok fittings
• MFC gas sensor factor for calibration of alternate gases other than clean air and N₂.

FlexCal H, FlexCal M, FlexCal L

• Unparalleled flow ranges, accuracy, and portability
• Three flow ranges: Low: 5 – 500 ccm; Medium: 50 – 50,000 ccm; High: 300 – 30,000 ccm
• Standardised accuracy: ±0.5% of reading
• Primary flow standard
• Swagelok fittings
• USB connectivity.

Industries