RKI Calibration Gas H2S 25ppm / CO 50 ppm / CH4 60% LEL / O2 12% in N2, 34 Liter Aluminum Cylinder.
Includes a Gas Regulator, demand flow for 34-liter Aluminum Cylinder.
Advanced Dissolved Oxygen Benchtop Meter with Polarographic DO Probe
Hanna instruments - HI6421P
Upon Request
Advanced Dissolved Oxygen Benchtop Meter with Optical DO Probe (opdo®)
Hanna instruments - HI6421
Upon Request
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