Specification Brand : VTSYIQI BulletPoint1 : Dissolved Oxygen Meter Kit Economical online dissolved oxygen controller is equipped with a polarographic electrode. BulletPoint2 : Online Dissolved Oxygen Meter Kit 1 or 2 points calibration using the air-saturated water or zero oxygen solution. BulletPoint3 : Handheld Dissolved Oxygen Meter Kit Salinity and barometric pressure compensations ensure the accurate DO measurement. BulletPoint4 : Digital Dissolved Oxygen Meter Kit Automatic temperature compensation eliminates the measurement error. BulletPoint5 : Setup menu allows setting the number of calibration points, measurement unit, alarm limits, hysteresis value, 4 to 20mA output, etc Color : White IncludedComponents : main host ItemName : VTSYIQI Portable Dissolved Oxygen Meter Kit DO Meter Water Quality Tester with Polarographic Electrode Range 0.0~20.0mg/L Accuracy ±0.5mg/L Resolution 0.1mg/L 1 or 2 Points Calibration ItemPackageDimensions_Height : 27 centimeters ItemPackageDimensions_Length : 43 centimeters ItemPackageDimensions_Width : 13 centimeters ItemPackageQuantity : 1 ItemShape : Rectangle ItemTypeKeyword : science-lab-ph-meters Manufacturer : VTSYIQI202501061408852562VTSYIQI Material : Plastic MeasurementAccuracy : high MeasurementSystem : Metric ModelName : VTSYIQI20250106142885656VTSYIQI ModelNumber : VTSYIQI202501061408852562VTSYIQI NumberOfItems : 1 PartNumber : VTSYIQI202501061408852562VTSYIQI PowerSourceType : Battery Powered ProductDescription : Water Quality Meter Dissolved Oxygen Tester Meter DO Meter With DO Probe Temperature salinity compensation