Turn the Defender on. Connect it to your pump. Take measurements. It's that simple.
Instantly calibrate your air samplers using Quick Start– there is no preparation involved, no messy soap bubble solutions. Or, set your Defender to take hands-free,continuous measurements while you quickly set the flow rate on your pumps. Defender’s many user-selectable options makes customising your calibrations easy, giving you exactly what you need in the format you prefer. All you have to do is choose between the 510, the 520 or the 530.
520 models record ambient temperature and pressure for enhanced audit trail.
530 models sense ambient temperature and pressure and standardize calibration readings.