In less than 30 min, 10-in-1 re-rangeable Model DP15 can be calibrated. Variable reluctance sensor made of stainless steel provides ±0.25% accuracy in low-pressure ranges. Ten diaphragms support ±2.22 in. H2O to ± 3,200 psi FS. Kit includes O-rings, bleed screws, gaskets, and indicator with LCD readout.