The AII GPR-2500SN Oxygen Monitor is designed for measuring ambient air in general purpose or hazardous area. It is 18-24V loop powered with ranges of 0 to 1%, 0 to 5%, 0 to 10%, and 0 to 25% O2. The sensor is located at the bottom of the NEMA box and is open to the atmosphere. The XLT-11-24-4 sensor is an available option for use in areas with gases containing >0.5% CO2.
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