Digital vacuum/pressure gauge easily connects to test port on Sentinel instruments to accurately verify or calibrate the instrument's pressure display. Standard 41/2 digit LCD readout with 1/2 in. character size in one of nine engineering units has accuracy of 0.13% full scale. Available pressure ranges extend from vacuum to 60 or 300 psi.

Cincinnati Test Systems Inc., (513) 202-5103, www.cincinnati-test.com