VTSYIQI Portable pH/Conductivity/TDS/Salinity Meter Multi Parameter Water Quality Meter with Conductivity Standard Solutions Range -1999.9 to 1999.9 mV for Measuring PH,Oxidation Reduction Potential,Conductivity,TDS,Salinity,Resistivity

VTSYIQI Portable pH/Dissolved Oxygen Meter Multiparameter Water Quality Meter with Conductivity Standard Solutions Range 0.00 to 20.00 mg/L/ 0.0 to 200.0% Saturation Manual/Auto-read Measurement Endpoint E201-BNC pH Electrode

VTSYIQI Portable PH3 Gas Detector Phosphine Gas Detector with Resolution 0.01ppm Accuracy ≤±3% F.S.Measuring Range 0 to 50ppm Automatic Data Storage Over 100,000 Sets of Stored Data Principle Electrochemical USB Interface

VTSYIQI Portable Phosphine Gas Detector PH3 Gas Detector with Gas Pump Sampling Method Measuring Range 0-20ppm L-Alarm 5ppm H-Alarm 10ppm Resolution 0.1ppm Accuracy ≦±5% F.S. for Petroleum Chemical Environmental Metallurgy

VTSYIQI Portable Plant Nutrition Analyzer Chlorophyll Content Measurement with Chlorophyll Measuring Range 0.0 to 99.9SPAD Nitrogen Content Measuring Range 0.0 to 99.9mg/g Leaf Surface Temperature Measuring Range -10 to 99.9℃

VTSYIQI Portable Plant Nutrition Analyzer Chlorophyll Meter with Chlorophyll 0.0 to 99.9SPAD Nitrogen Content 0.0 to 99.9mg/g Leaf Surface Temperature -10 to 99.9℃ Non-Destructive Plant Vivisection Data Storage Function

VTSYIQI Portable Plant Nutrition Analyzer Chlorophyll Meter with Measurement Range Chlorophyll 0.0-99.9SPAD Leaf Temperature -10-99.9℃ for Chlorophyll Content Leaf Temperature Test

VTSYIQI Portable Plant Nutrition Analyzer Leaf Nitrogen Content Meter with Chlorophyll Measuring Range 0.0 to 99.9SPAD Nitrogen Content Measuring Range 0.0 to 99.9mg/g Leaf Surface Temperature Measuring Range -10 to 99.9℃

VTSYIQI Portable Plant Nutrition Analyzer Tester with Chlorophyll 0.0-99.99SPAD Nitrogen Content 0.0-99.99mg/g Leaf Temperature -10-99.9℃ Leaf Humidity 0.0-99.9RH% for Nitrogen Chlorophyll Leaf Temperature Leaf Humidity

VTSYIQI Portable Potassium Ion Meter K Ion Concentration Meter Tester with Standard Calibration Liquids Ion Concentration Range from 0.04 to 39000 ppm Measurement Units ppm mg/L mol/L mmol/L Resolution 0.001 0.01 0.1 1 Automatic

VTSYIQI Portable Power Quality Analyzer 3 Phase Power Quality Meter with Range 10mA~10.0A 4 Current Clamp Sensor Size 7.5mm×13mm for Analyzing Voltage Current Power Electrical Energy Harmonic Phase Etc

VTSYIQI Portable Power Quality Analyzer Energy Quality Analyzer with 4PCS Round Jaw Current Clamp USB Communication Interface Range 0.10A~100A CT Size 35mm×40mm Large LCD Color Screen Display Peak Mode Expert Mode