Measurement information Description Sensor Description Sensor Measurement of oxygen concentration Zirconia 25%~50ppm ±2% C/V Metal Sensor PCB Detection Photo Sensor Principle of measurement It measures the oxygen concentration for up to 13 suction points and is displayed on the screen. Specification Specification Minimum Requirement OS Window 95, 98, ME, 2000, XP, 7, 8, 10 Processor / Memory Over Pentium 2 / 64MB HDD / CD-ROM Over 64MB/Included CD-Rom(for Installation) VGA / Connect 1024×768, over 16bit/RS232 .