VTSYIQI Water Hardness Meter Portable Water Hardness Meter with Standard Calibration Solutions Range 0.05 to 200 mmol/L Resolution 0.001, 0.01,0.1,1 Automatic Accuracy ±1% F.S. Selectable Water Hardness Units for Measuring Concentration

VTSYIQI Water Hardness Tester Laboratory Water Hardness Meter with Standard Calibration Solution Concentration Range 0.05-200 mmol/L Accuracy ±1% F.S. Selectable Water Hardness Units for Measuring Calcium and Magnesium Ion Concentration in Water Samples

VTSYIQI Water Hardness Tester Portable Water Hardness Meter with Calibration Liquids Concentration 0.05~200 mmol/L Temperature 0 to 105°C USB Interface 500 Data Memory for Measuring Calcium and Magnesium Ion Concentration in Water Samples

VTSYIQI Water Quality Meter Portable PH/Conductivity Meter with Conductivity Standard Solutions Resolution 0.001 0.01 0.1 pH Selectable Accuracy ±0.002 pH Stores Up to 500 Data Sets Backlit LCD Display for Measuring pH mV Conductivity TDS

VTSYIQI Water Speed Meter Flow Velocity Meter Flow Speed Meter with Speed Range 0.01-5.00 m/s Temperature Range -10 ° C-50° C Current Measurement Error ≤1.5% Pole Positioning Measurement

VTSYIQI Water Speed Meter Water Flow Rate Tester Water Velocity Meter with Pole Positioning Measurement Temperature Range -10°C-50°C LED Backlight Speed Range 0.01-10.00 m/s Measurement Error ≤1. 5%

VTSYIQI Water Speed Meter Water Flow Speed Meter with Speed Range 0.01 to 10.00m/s Temperature Range -10°C to 50°C Pole Positioning Measurement Method for Measuring Open Channel Flow Rate Such As Fresh and Seawater Stream River Etc

VTSYIQI Water Turbidity Meter Nephelometer Water Quality Tester with 2 to 5 Points Calibration Range 0 to 1100 NTU/FNU 0 to 275 EBC 0 to 9999 ASBC ASTM ISO 7027 Standard Nephelometric Principle

VTSYIQI Water Velocity Meter Flow Rate Meter Flow Velocity Meter Tester with Speed Range 0.01-5.00m/s LCD Display Pole Positioning Measurement for Agricultural Drainage and Irrigation Hydrogeological Survey

VTSYIQI Water Velocity Meter Flow Velocity Meter with LED Backlight Pole Positioning Measurement Speed Range 0.01-5.00 m/s Current Measurement Error ≤1.5% Temperature Range -10 ° C-50° C for Open Channel Flow

VTSYIQI Water Velocity Meter Open Channel Water Speed Tester with Measurement Error ≤1. 5% Speed Range 0.01-10.00 m/s Pole Positioning Measurement Method for Measuring Open Channels and Partially Filled Pipes

VTSYIQI Water Velocity Meter River Velocity Meter Flow Speed Rate Tester with Speed Range 0.01-10.00 m/s Measurement Error ≤1. 5% Pole Positioning Measurement LED Backlight for Open Channel Flow