Specification Brand : ERICAT BulletPoint1 : Zero Calibration:Adopt A High-Precision Optical , Water Turbidity Meter Is A Very Practical Tool, The Measuring Principle Is Based On Measuring The 90 Scattered Light Of An Infrarred Light Source Under Turbidity With Simultaneous Zero Calibration Possible. BulletPoint2 : LED Readout Screen: The Screen With Backlight Uses High Quality Green Light Digital Tube, Clearly Displaying The Value Whether Indoor Or Outdoor, Which Makes Reading More Comfortable And Unaffected By Natural Light. BulletPoint3 : Digital Design:Lab Turbidity Meter Is Able To Meet The Needs Of Various Scenarios, Allowing You To Easily Read Data At Night, Designed With A Backlit Led Display For Clear Reading. BulletPoint4 : Fast Measurement: Ensuring Accurate And Fast Measurement, Digital Turbidity Meter Adopts Nephelometric Turbidity Units (Ntu), Very Convenient For You To Use. BulletPoint5 : Wide Application:Handheld Turbidimeter Can Be Used In Water Supply Plants, Food Industry, Power Plants, Swimming Pools, Etc., Is A Water Quality Laboratory Must Have A Wide Range Of Uses, Very Practical Tool. ExternallyAssignedProductIdentifier : 8463278182830 ItemName : Turbidity Meter Kit, Portable Turbidity Tester with 3 Sample Bottle, 90°Scattered Light, 0~200NTU Measuring Range and 0.1NTU Minimum Indication, Fast Testing and Easy to Read, for Swimming Pools ItemTypeKeyword : science-lab-turbidity-meters Manufacturer : ERICAT PartNumber : TY0219003874 ProductDescription : Product Information: Product Name:Portable Turbidity Tester Rated Voltage: 110-240V Principle Of Measurement: 90 ° Scattered Light Minimum Indication (Ntu): 0-200 Measuring Range (Ntu): 0.1 Zero Point Drift: ±1%F.S Power Supply: Dc 1.5Vx5 AA Alkaline Dry Batteries(Not Included) Product Features: LCD Liquid Crystal Display, Led Light Source, Automatic Shutdown, Ac And Dc Dual-Use, Suitcase Packaging