VTSYIQI Benchtop Water Hardness Meter Water Hardness Meter with Standard Calibration Solution Range Concentration 0.05 to 200 mmol/L German Degree 0 to 1122°dH Accuracy ±1% F.S. 2 to 5 Resolution 0.001,0.01,0.1,1,Automatic Auto-read Function

VTSYIQI Benchtop Water Hardness Tester Laboratory Water Hardness Meter with Calibration Liquids Boiler Range 0 to 400 mmol/L Ca²⁺ Range 0 to 8020 mg/L 2 to 5 points Calibration Setup Menu Allows Setting the Number of Calibration Points

VTSYIQI Bentchtop Color Haze Meter Color Transmittance Haze Meters Transmittance Color Hazemeter with Dual-Caliber 21mm 7mm Touch Screen Professional Transmittance Spectrum Curve Good Repeatability ASTM ISO Standard

VTSYIQI Bentchtop Water Activity Meter Food Water Activity Meter Tester with 3 Sensors Water Activity Sensor Water Activity Measuring Range 0～1.000aw Accuracy ±0.012aw Temperature Range -10℃～50℃ Repeatability ≤0.008aw Print Function

VTSYIQI Bentchtop Water Activity Meter Water Activity Measurement with Free Printer 2 WSC-4 Sensor Water Activity 0 to 1.000aw Accuracy ±0.012aw Record 5000 Sets Of Measured Data USB And RS232 Interface

VTSYIQI Bentchtop Water Activity Tester Smart Food Water Activity Meter Monitor with 1 Sensor WSC-4 Water Activity Range 0～1.000aw Accuracy ±0.012aw USB And RS232 Interface Free Printer for Wetter Food Paste Jam Jello Dough

VTSYIQI Bentchtop Water Activity Tester Water Activity Analyzer Monitor with 2 High Precision Sensor USB And RS232 Interface Free Printer Temperature Range -10℃～50℃ Water Activity Range 0～1.000aw Data Record Function

VTSYIQI Benzene Detector C6H6 Gas Leak Detector with Adjustable Low and High Alarm Level Range from 0 to 100ppm Explosive Proof Housing for Combustible and Toxic Gas Leakage Detection in Underground Pipe or Mines

VTSYIQI Benzene Detector Handheld Benzene C6H6 Detectors with Adjustable Calibrating Level L-alarm 20ppm H-alarm 50ppm Range from 0 to 100ppm Password Management to Avoid Wrong Operation for Testing Toxic and Combustible Gases

VTSYIQI Benzene Gas Detector C6H6 Gas Detector with H-alarm 50ppm L-alarm 20ppm Range 0-100ppm Accuracy ≦ 5% F.S. Advanced MCU Control LCD Display Screen for Detection of Gas Concentration in Air

VTSYIQI Benzene Gas Detector C6H6 Gas Leak Detector with Wall-mounted Installation Method Measuring Range 0-100ppm L-alarm 10ppm H-alarm 20ppm High Precision Display for Gas Test of Refinery Chemical Plant Boiler Room

VTSYIQI Benzene Gas Detector Fixed C6H6 Benzene Gas Alarm Monitor with Measuring Range 0-100ppm L-alarm 10ppm H-alarm 20ppm Output Current 4-20mA High Precision for Continuous Monitoring of Measurable Gases in Industrial Environments