Industrial Oxygen Analyzer for Semiconductor and Lab clean room

oxygen deficiency monitor is perfect for facilities using nitrogen, helium, and argon. The monitor is also suited for use in confined spaces, cryogenic facilities, and freezers. The monitor remains accurate at temperatures as low as -40C. Our long lasting zirconium oxide sensor lasts for 10+ years. Features: 10 + Years No Calibration Sensor Two-Alarm Relays for 19.5% and 18.0% No Maintenance Required Ultra Loud Built-in audible alarm 90 db 3 Year Warranty Digital Display, 4-20mA Analog Output Low 450�C temperature Zirconium Oxide Sensor Operates in Freezers at � 40 �C No Drift due to Thunderstorms or barometric pressure changes Wall mounting brackets and optional plug-in wall power supply UL, C UL and CE Approvals Specifications: Sampling Method Diffusion Gases Detected Oxygen (O2) Range 0 � 25 % O2 Accuracy � 1 % of Full Scale Operating Temperature -40 to +55 �C Display 3/4? LCD Digital Display, Back Lit Sensor Type Long life zirconium oxide sensor cell Sensor Life > 10 years under Normal Conditions Signal Outputs 4-20 mA Analog Output Dual Level Alarm Relay Contacts Power Requirements 24 VDC 250 mA Width 5.5 in 140 mm Height 10.5 in 267 mm Depth 3.25 in 83 mm Weight 1.6 lb 0.8 kg Enclosure Nema 4X Required Calibration None No Zero or Span Pot Adjustment Required