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

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

VTSYIQI Water Flow Speed Meter Flow Velocity Meter River Velocity Meter for Open Channel Flow Such As Fresh and Seawater Stream River Etc with Speed Range 0.01-5.00 m/s Temperature Range -10 ° C-50° C Pole Positioning Measurement Method

VTSYIQI Water Flow Speed Meter Water Velocity Meter for Open Channel Flow with Temperature Range -10°C to 50°C Speed Range 0.01 to 10.00m/s Pole Positioning Measurement Method Current Measurement Error ≤1.5%

VTSYIQI Water Flow Velocity Meter Flow Rate Measurement Open Channel Water Velocity Meter with Speed Range 0.01 to 10.00m/s Current Measurement Error ≤1.5% Temperature Range -10°C to 50°C Pole Positioning Measurement Method

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

VTSYIQI Water Hardness Analyzer Benchtop Water Hardness Meter with Standard Calibration Solution Concentration Range 0.05 to 200 mmol/L Automatic Temperature Compensation for Measuring Calcium and Magnesium Ion Concentration in Water Samples

VTSYIQI Water Hardness Analyzer Laboratory Water Hardness Meter with Standard Calibration Liquids Range (CaCO₃) 0 to 19999 mg/L (CaO) 0 to 11220 mg/L (Boiler) 0 to 400 mmol/L (Ca²⁺) 0 to 8020 mg/L Stores Up to 500 Data Sets

VTSYIQI Water Hardness Meter Benchtop Water Hardness Meter Tester with Standard Calibration Solutions 0.01/0.1/1/10/100 mmol/L Concentration Range 0.05-200 mmol/L 2 to 5 Points Calibration Accuracy ±1% F.S.

VTSYIQI Water Hardness Meter Digital Water Hardness Meter with Standard Calibration Liquids Range 0.05 to 200 mmol/L Manual/Auto-read Measurement Endpoint Stores Up to 500 Data Sets Backlit LCD Display Automatic temperature compensation

VTSYIQI Water Hardness Meter Laboratory Water Hardness Meter with Calibration Liquids Range 0 to 1122°dH Range 0 to 1404°e Resolution 0.001, 0.01,0.1,1 Automatic Automatic Temperature Compensation Manual/Auto-read Measurement Endpoint

VTSYIQI Water Hardness Meter Laboratory Water Hardness Meter with Standard Calibration Solution Resolution 0.001,0.01,0.1,1,Automatic Accuracy ±1% F.S. 2 to 5 points Calibration Concentration Range 0.05 to 200 mmol/L Manual/Auto-read Measurement Endpoint