Certifications/Compliance: ISO 17025, A2LA, NIST. Dimensions (L x W x H): 7.12 x 2.75 x 1.12 in. (18.1 x 7 x 2.9 cm) For Use With (Application): Portable units measure and display differential pressure/vacuum in 11 different units (psi, mbar etc). Height (English): 1.12 in.