The industry standard for day-to-day flow verification and calibration of your personal and environmental sampling pumps. It is also suitable for verifying Rotameters, setting instrument panels, and calibrating laboratory instruments. The mini- BUCK CALIBRATOR™ is accurate at any altitude and can be used for flow measurements with sampling media. Rugged design provides fast, one-handed operation with an easy-to-read LED display visible even in sunlight. Other features include: flow cells that are sun shielded, a sealed bubble stem for pressure readings, is easy to clean, and won’t leak even if the unit is inverted. The mini- BUCK CALIBRATOR™ automatically displays averaged readings of volumetric flow and is NIST traceable with display accuracy of ± 0.5%.