Digital Hydronic Manometer, Includes (2) 6.7 ft x 1/4 in Hoses with Shut-Off Valves, (2) B&G Readout Probes, (2) P/T Gauge Adapter Probes, Hard Carrying Case, Power Cord, Temperature Probe, USB Interface Cable, Maximum Gauge Pressure 300 psi, Measuring Units bar, ft wc, in wc, in Hg, kPa, m wc, mm Hg, psi, Minimum Gauge Pressure 300 psi, Pressure Accuracy +/-0.5 Percent of Full Scale, Pressure Resolution 0.001 psi, Number of Records Stored 4,000, Maximum Differential Pressure Measured 300 psi