GPR-1200 MS ppm Oxygen Analyzer
Proprietary MS Pico-Ion sensor capable of oxygen analysis under 10 ppb. Meets recognized intrinsic safety (approval pending) standards for use in Class 1, Division 1, Groups A-D hazardous areas. Integral stainless steel bypass sample system not only extends sensor life but significantly increases operator productivity. Automated range, zero, calibration, system diagnostic functions. Operates on rechargeable battery for 60 days after an overnight charge. Optional integral sampling pump in general purpose and intrinsically safe designs, coalescing filter, and carrying case.
Ranges - Standard:  0-1 ppm, 0-10 ppm, 0-100 ppm, 0-1000 ppm

GPR-1200 ppm Oxygen Analyzer
Proprietary advanced galvanic sensor capable of oxygen analysis under 100 ppb. Meets recognized intrinsic safety (approval pending) standards for use in Class 1, Division 1, Groups A-D hazardous areas. Integral stainless steel bypass sample system not only extends sensor life but significantly increases operator productivity. Automated range, zero, calibration, system diagnostic functions. Operates on rechargeable battery for 60 days after an overnight charge. Optional integral sampling pump in general purpose and intrinsically safe designs, coalescing filter, H2S scrubber and carrying case.  
Ranges - Standard:  0-10 ppm, 0-100 ppm, 0-1000 ppm, 0-1%, 0-25%
    

GPR-1100 ppm Oxygen Analyzer
Proprietary advanced galvanic sensor capable of oxygen analysis under 100 ppb. Meets recognized intrinsic safety (approval pending) standards for use in Class 1, Division 1, Groups A-D hazardous areas. Stainless steel sensor housing and quick release connections. Automated range, zero, calibration, system diagnostic functions. Operates on rechargeable battery for 60 days after an overnight charge. Optional carrying case.  
Ranges - Standard:  0-10 ppm, 0-100 ppm, 0-1000 ppm, 0-1%, 0-25%

GPR-1000 ppm Oxygen Analyzer
Proprietary advanced galvanic sensor capable of oxygen analysis under 100 ppm. General purpose design that operates on rechargeable battery for 60 days after an overnight charge. Automated range, zero, calibration, system diagnostic functions.  Stainless steel sensor housing and brass quick release connections. Optional integral sampling pump and carrying case.  
Ranges - Standard:  0-1000 ppm, 0-1%, 0-25%