This unit is identical to #48250, except that the gauges are scaled in both kilopascals (kPa) and pounds per square inch (psi). kPa is convenient scientific unit equal to bars x 100. The vacuum drive is 220/240 VAC/50 cycles for operation on European current. See description of #48250 and flowbench specification section for more data on the operational and physical properties of this apparatus. Pressure Ratings: Up to 5,000 psi (34,475 kPa) inlet; Regulated output test pressures: 100 - 4,500 psi to Test Stand. Air Supply: From air storage bank, industrial bottle, or scuba tank; 5-ft hose and yoke assembly provided. Pressure Gauges: Inlet - 5,000 psi (34,475 kPa) 2.5" face, 2% accuracy; Output - 5,000 psi, 4.5" face; 1% accuracy; Regulator Intermediate Pressure - 300 psi (2068 kPa) 4.5" face, 1% accuracy. Flowmeter: Floating ball type - 0-30 SCFM (Standard cu. ft./min. or 840 liters / min.). Breathing Effort Gauges: High effort mode - Dual scale (+ and -) 0-5 inches water column across 4" face; Expanded mode - 0-3 inches water column across 4" face. European model #48260 - 1.5 kPA dual scale and 500 Pa expanded scale gauges respectively. Shop Air: Supplied at 50 - 100 psi by a special integrated regulator to an outlet coupler; 4-ft hose and blowgun included. Electrical: 220 / 240 VAC / 50 cycles. Accessories: Instruction manual covers the installation, maintenance, and use; complete description of testing procedures and parameters included. All required adapters provided. Shipping Weight: 90 lbs.