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

VTSYIQI Handheld Optical Transmittance Meter Light Transmission 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 Screen

VTSYIQI Handheld Optical Transmittance Meter Light Transmission Meter with Measuring Wavelength Range Visible Light 380nm-760nm Infrared Peak Wavelength 940nm Illumination Light Source Ultraviolet Visible Infrared 940nm

VTSYIQI Handheld Paper Moisture Meter Paper Moisture Testing Machine with Manual Off at Any Time Digital Display with Back Light Measuring Range 0.00-2.00%(d) 0.0-98.0%(s) Resolution 0.1 or 0.01 for Corrugated Paper,Cartons,Paper Rolls,Etc

VTSYIQI Handheld Pen Type Hardness Tester Pen-Style Hardness Tester for Coatings Plastics Wood Metal Materials with Pressure Test Spring Material Spring Steel

VTSYIQI Handheld pH Meter Portable pH and Temperature Meter with Calibration Liquids Accuracy ±0.01 pH Range -1999 to 1999 mV Manual / Auto-read Measurement Endpoint Automatic Temperature Compensation for Measure the pH Value of Sample Solution

VTSYIQI Handheld pH Meter Water pH Analyzer with Calibration Liquids Range -2.00 to 20.00 pH Accuracy ±0.01 pH Resolution 0.01 pH Range -1999 to 1999 mV E201-BNC pH Electrode Auto-read Function for Measure the pH Value of Sample Solution

VTSYIQI Handheld Phosphine Gas Detector PH3 Detector with Measuring Range 0 to 100ppm Resolution 0.1ppm Accuracy ≤±3% F.S.Built-in Micro Sampling Pump Built-in Water Vapor Dust Filter Principle Electrochemical