Ranges:0 to 30 psia(g), 0 to 100 psia(g), 0 to 300 psia(g), 0 to 500 psia(g), 0 to 1000 psia, and 0 to 5000 psia depending on the model.Memory Size:262,143 readings.Accuracy:2% FSR, 0.25% at 77°F (25°C) typical.Resolution:0.002 psi (30 psi), 0.005 psi (100 psi), 0.02 psi (300 psi), 0.05 psi (500 and 1000 psi), and 0.2 psi (5000 psi) depending on model.Sampling Method:Stop on memory full or continuous recording.Sampling Rate:Selectable from 2 sec to 12 hrs.Computer Requirements:Windows® 95, Windows® 98, Windows® 2000, Windows® ME, Windows NT®, or Windows® XP operating system, and one free USB port.Power Requirements:(6) AA alkaline batteries, installed functional, user replaceable. Optional AC adapter.Battery Life:1 yr (approx).Interface:USB port (interface cable required).Housing Material:Black anodized aluminum case.Wetted Material:316L SS.Enclosure Rating:IP65.Weight:40 oz (1134 g).Agency Approvals:CE