D1381 Panel Mount Pressure Gauge U Clamp 3-1/2 In. 0 to 3000 psi Connection Size 1/4 in NPT Connection Location Back Smallest Graduation 2 psi Accuracy +/-3-2-3 Percent Case Material Steel Case Color Black Socket Material Brass Tube Material Bronze Lens Material Polycarbonate Operating Temp Range -40 Degrees to 150 Degrees F