Neoteck DTI Digital Dial Indicator 0.5''/12.7mm, High Resolution: 0.00005''/ 0.001mm, Digital Probe Indicator Dial Test Gauge: Amazon.com: Industrial & Scientific
Winters PEM Series Steel Dual Scale Economical All Purpose Pressure Gauge with Brass Internals, 0-100 psi/kpa, 2" Dial Display, +/-3-2-3% Accuracy, 1/8" NPT Bottom Mount : Amazon.ca: Industrial & Scientific