VTSYIQI Benzene Gas Detector Portable Benzene Monitors with Range 0-100ppm L-alarm 20ppm H-alarm 50ppm Protection Category IP65 LCD Display Screen for Combustible and Toxic Gas Leakage Detection

VTSYIQI Benzene Gas Detector Portable C6H6 Detector with Measuring Range 0-100ppm L-Alarm 20ppm H-Alarm 50ppm Accuracy ≦±5% F.S. Gas Pump Sampling Method for Industrial Site Safety Monitoring C6H6 Gas Test

VTSYIQI Beta Gamma X-ray Dosimeter Nuclear Radiation Detector Radioactivity Monitor With Measuring Range 0.1μSv/h to 50mSv/h For X β γ Ray Radiation Detector

VTSYIQI Binocular Abbe Refractometer Lab Refractometer with Accuracy ±0.0003 Measuring Range 1.3000-1.7000 nD 0.0-95% Brix Digital Thermometer Display

VTSYIQI Binocular Refractometer ABBE Brix Refractometer Binocular Abbe Refractometer with Accuracy ±0.0003 Measuring Range 1.3000-1.7000 nD Dissolved Solids Brix 0-95% for Sugar Petroleum Food

VTSYIQI Binocular Refractometer ABBE Refractometer Binocular Abbe Refractometer Brix Refractometer Abbe Binocular Refractometer with Refractive Index 1.3000-1.7000nD Accuracy ±0.0003nD Brix 0-95%

VTSYIQI Binocular Refractometer Abbe Refractometer with Accuracy ±0.0003 Refractive Index nD 1.3000-1.7000nD Digital Thermometer for Sugar Pharmaceutical Beverage Petroleum Food Chemical Industries

VTSYIQI Black And White Densitometer Black And White Transmission Density Meter with Density Range D=0.00 To 4.00 Aperture Diameter 2mm Repeatability ±0.02 for Measuring The Blackness Of Films

VTSYIQI Black and White Densitometer Density Meter with Measure Range 0 to 4.5D Three Digital LED Displaying Densimeter Measure Area ф2mm(Light Hole Diameter) Repeatability Error ±0.01D

VTSYIQI Black and White Density Meter Black White Densitometer with Measure Range 0 to 5.0D Measure Area ф2mm(Light Hole Diameter) Repeatability Error ±0.01D Three Digital LED Displaying Densimeter

VTSYIQI Black And White Transmission Densitometer Black and White Density Meter with Density Range D=0.00 To 5.00 Sampling Time 0.8s Repeatability ±0.02 for Measuring The Blackness Of Films

VTSYIQI Black White Densitometer Black And White Transmission Densitometer with Range of Densimeter D=0.00~4.50 Measuring Error ±0.02 （0.0＜D≤2.0）±1% （2.0＜D≤4.0）±0.05 （4.0＜D≤5.0）