AO-2 Electric Spark Leak Detector / Pipe Coating Porosity Tester for Asphalt-Enamel Tape Applicable Test Thickness: 0.2 mm to 20 mm High-Voltage Output: 0 to 6 kV, 5 kV to 30 kV (±10%) (steplessly adjustable) High-Voltage Output: Directly indicated DC Power Supply: 12 V Power Consumption: Approximately 6 W Main Unit Dimensions: 170 × 160 × 70 mm Main Unit Weight: 1.8 kg