VTSYIQI Online DO Controller Meter Online Dissolved Oxygen Monitor with Communication Interface RS485 Calibration 1 or 2 Points Dissolved Oxygen Range 0.00 to 20.00 mg/L Temperature Compensation 0 to 40°C/32 to 104°F

VTSYIQI Portable Optical Dissolved Oxygen Meter Fluorescence Dissolved Oxygen Meter with 5m Probe Solution 0.1 (mg/L) Dissolved Oxygen Measurement Range 0~15mg/L or 0~119.9% Altitude Compensation 0~1000m

VTSYIQI Fluorescence Dissolved Oxygen Tester Detector Fluorescence DO Meter with 5m Probe Measuring Range 0.0-15.0 (mg/L)/0-119.9% Solution 0.1 mg/L Accuracy ±3.0% Salinity Compensation 0~42ppt FS Calibration 100.0%

VTSYIQI Digital Optical Dissolved Oxygen Meter with Dissolved Oxygen Measurement Range 0~15mg/L or 0~119.9% 5m Probe 99 points Records Calibration 100.0% in Air Altitude Compensation 0~1000m

VTSYIQI Fluorescence DO Meter Fluorescence Dissolved Oxygen Tester with 5m Probe Measuring Range 0.0-15.0 (mg/L)/0-119.9% Solution 0.1 mg/L 99 Points Records Accuracy ±3.0% FS Calibration 100.0% in Air

VTSYIQI Fluorescence Dissolved Oxygen Detector Fluorescence DO Meter with 5m Probe Measuring Range 0.0-15.0 (mg/L)/0-119.9% Solution 0.1 mg/L Accuracy ±3.0% FS Calibration 100.0% in Air 99 Points Records

VTSYIQI Portable Optical Dissolved Oxygen Meter Fluorescence DO Meter with 5m Probe Dissolved Oxygen Measurement Range 0~15mg/L or 0~119.9% Salinity Compensation 0~42ppt Calibration 100.0% in Air

VTSYIQI Portable Dissolved Oxygen Meter Gauge Dissolved Oxygen Tester With Standard Calibration Liquids Accuracy ±0.5 mg/L Expanded memory stores USB For measure conventional water wastewater salt water and other liquids