Accurate, Reliable & Portable Primary Calibrators for Fast Calibration of Air Sampling Pumps

Backed by Proven DryCal® Technology for fast,1% of reading calibrations of personal sampling pumps,the Defender 510 and Defender 520 give you the flexibility needed to enable you to do your work – defending lives. The Defender Series has it all.

Our laboratory is a fully accredited ISO-17025 facility with a 0.08% Scope of Accreditation for gas flow by NVLAP of NIST.

For use with non-corrosive, non-condensing, non-combustible gases, less than 70% humidity.

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