The Defender is a true primary standard calibrator based on volume displacement. Built on next-generation DryCal® technology, the new Defender calibrators integrate all the advantages of the popular DC-Lite calibrator with exciting new features based on 10 years of product feedback and ongoing research.

Available in 3 flow ranges:

5 to 500 ml/min
50 to 5000 ml/min
300 to 30,000 ml/min

Exciting Defender Features:

Choose single, hands-free continuous, or user-specified “burst” measurements
Large illuminated graphical display with zoom feature
Sleek molded case design with rubber handgrips
— slim enough to fit in a briefcase
Integrated serial PC interface and software
Rugged — interior shock absorbers for field use
Time intervals between measurements for checking personal sampling stability over a typical sampling period
3 wide flow ranges: 5 to 500 ml, 50 ml to 5 L, and 300 ml to 30 L