Includes protective cap, batteries and calibration certificate * •Display in Pascal optional over entire measurement range * •Accuracy: ±0.01 "H20 (0 to 0.12 "H20) / ±0.02 "H20 (0.13 to 0.4 "H20) * •Magnetic back permits free-hand work * •Flow velocity measurement with Pitot tube (Pitot tube not included in delivery)