VTSYIQI Digital Benchtop pH Meter PH Tester with PH Buffer Powder mV Measuring Range -1599～1599mV Resolutin 1mV 2 Points Calibration pH Measuring Range 0.00～14.00pH Resolutin 0.01pH for Measure The pH Value of Sample Solution

VTSYIQI Digital Benchtop pH Meter with 50 Sets Data Storage PH Buffer Powder Movable Bracket mV Measuring Range -1999～1999mV pH Measuring Range -2.00～18.00pH Auto-Shut Off Function 3 Points Calibration for Measure The pH Value of Sample Solution

VTSYIQI Digital Benchtop pH Meter with PH Buffer Powder Movable Bracket 50 Sets Data Storage 3 Points Calibration mV Measuring Range -1999～1999mV pH Measuring Range -2.00～18.00pH Automatic/Manual Temperature Compensation

VTSYIQI Digital Benchtop pH Meter with PH Buffer Powder mV Measuring Range -2000~2000mV Movable Bracket 5 Points Calibration 500 Sets Data Storage 6-inch LCD Display Auto-Shut Off Function Automatic/Manual Temperature Compensation

VTSYIQI Digital Benchtop Spectrophotometer Digital Colorimeter Benchtop Color Meters with Reflectivity Range Resolution 0-200% 0.01% Measurement Wavelength Range 360nm to 780nm Transmittance Φ17mm/Φ25mm for Laboratory Color Analysis and Transmission

VTSYIQI Digital Benchtop Turbidity Meter Turbidimeter Nephelometer with Range 0 to 2000 NTU/FNU 0 to 500 EBC 0 to 9999 ASBC Accuracy ±2% 4 PCS Calibration Solutions Continuous Measurement Mode Suspended Particle Analysis

VTSYIQI Digital Carbon Dioxide (CO2) Controller & Monitor with CO2 Measurement Range 0-9999ppm Temperature Measurement Range 0~50°C(32°F~122°F) Colour Display Pressure Compensation

VTSYIQI Digital Carbon Dioxide Controller Fixed CO2 Monitors with CO2 Measurement Range 0-9999ppm CO2 Display Resolution 1ppm Wall-Mounted Type Digital Color Screen Display Two Mode Human Mode Plant Mode Pressure Compensation

VTSYIQI Digital Carbon Dioxide Monitor CO2 Monitor and Controller with CO2 Measurement Range 0-9999ppm CO2 Repeatability 10ppm Display Resolution 1ppm CO2 Measurement Accuracy 50ppm /Reading 5%

VTSYIQI Digital Centrifuge Machine Mini Centrifuge Digital Micro Centrifuge with Rotor Speed 1000-7000rpm Max Relative Centrifuge Force 3286xg 2 in 1 Rotor Speed Adjustable and Timing LCD Display for 0.2/0.5/1.5/2ml Micro Tube

VTSYIQI Digital Chlorophyll Content Meter Chlorophyll Analyzer Measurement Range from 0.0 to 99.9SPAD and from -10 to 99.9°C Repeatability ±0.3SPAD ±0.2°C Measurement Precision ±1.0 SPAD ±0.5°C Silicon Semiconductor Photodiode Sensors

VTSYIQI Digital Chlorophyll Meter 4 in 1 Chlorophyll Content Nitrogen Content Leaf Temperature Leaf Humidity Tester with Range 0.0-99.99SPAD 0.0-99.99mg/g -10-99.9℃ 0.0-99.9RH%