VTSYIQI Handheld Light Transmittance Meter Optical Transmittance Tester with TFT True Color 3.5inch Display Screen UV Visible Infrared Illumination Light Source Visible Light 380nm-760nm Infrared Peak Wavelength 940nm USB Interface

VTSYIQI Handheld Light Transmittance Meter Portable Optical Transmittance Meter with Illuminant UV Visible Light Infrared 940nm Infrared 1400nm Infrared Full Band SHGC and TSER Resolution 0.1% TFT True Color 3.5inch Display

VTSYIQI Handheld Liquid Ultrasonic Flow Meter Flowmeter With Three Size Transducer For DN25-6000mm Pipe Size Working Temperature Range -30 to 90 Degree

VTSYIQI Handheld Loop Resistance Tester Contact Resistance Measuring Device with DC Test Current 10A, 20A, 30A, 40A, 50A, 60A, 70A, 80A, 90A, 100A 10 Gears External Thermal Printer Measurement Range 0.0uΩ~80.000mΩ 5-inch True Color LCD Touch Screen

VTSYIQI Handheld Loop Resistance Tester Contact Resistance Testing Device with Measurement Range 0.0uΩ~10.000mΩ DC Test Current 50A 100A 2 Gear Precision 4-Wire Method 2 Channels A/D simultaneous Detection Test Time Fast 10s 20s 30s 40s 50s 60s

VTSYIQI Handheld Methanol Gas Detector CH4O Gas Detector with Measuring Range 0 to 100ppm Resolution 0.1ppm USB Interface Built-in Micro Sampling Pump Over 100,000 Sets Data Stored Explosion-Proof Certification

VTSYIQI Handheld Nitrogen Dioxide Gas Detector NO2 Monitor Detector NO2 Leak Detector with Resolution 0.01ppm Measuring Range 0 to 50ppm Detection Principle Electrochemical Alarm Mode Sound Light Vibration Detection Error ≤±3% FS

VTSYIQI Handheld Nitrogen Dioxide Gas Detector NO2 Monitor Detector with CSTN Colorful LCD L-alarm 5ppm H-alarm 10ppm Measuring Range from 0 to 20ppm Resolution 0.1ppm Built-in Pump High Sensitivity and Repeatability for Testing Nitrogen Dioxide Gas

VTSYIQI Handheld Nitrogen Oxide Gas Detector NOX Detector with Measuring Range 0 to 250ppm Resolution 0.1ppm Built-in Micro Sampling Pump Principle Electrochemical Explosion-Proof Certification for Detecting Nitrogen Oxide Gas Leaks

VTSYIQI Handheld Nitrogen Oxide Gas Detector NOX Detector with Measuring Range 0-20ppm Resolution 0.01ppm Accuracy ≤±3% F.S.Principle Electrochemical Built-in Micro Sampling Pump Sound and Light Alarm Data Logging Function

VTSYIQI Handheld NO Gas Detector Nitric Oxide Gas Detector with Measuring Range 0-100ppm Resolution 0.01 Automatic Data Storage Built-in Micro Sampling Pump LCD Liquid Crystal Display Explosion-Proof Certification

VTSYIQI Handheld NO2 Gas Detector Nitrogen Dioxide Gas Detector with Resolution 0.1ppm Measuring Range 0 to 100ppm Detection Principle Electrochemical Built-in Micro Sampling Pumpfor NO2 Gas Test