A nice instrument which was designed as "water-proof" type. And indeal instrument to work with water!Features:1) Best suited for measuring the pH-values in many different solutions2) Measure

Features:1) Best suited for measuring the pH-values in many different solutions2) Measurement range: 0.0 ~ 14.0pH3) Resolution: 0.1pH4) Accuracy: ±0.1pH5) Temperature of solution: 0 ~ 50°C

Product Name: Pocket Type pH MeterPlace of Origin: ChinaFeatures:1) Best suited for measuring the pH-values in many different solutions2) Measurement range: 0.0 ~ 14.0pH3) Resolution: 0.1pH4) Accuracy

Features:1) Visual aim, manual measure, easy operation2) Measuring range: -180 ~ +180°3) Minimum value in reading: 0.05°4) Accuracy: ±0.05°5) Sensitivity: 0.05°6) Quality: 7.6kg

Product Name: PolarimeterModel Number: WXG-4Place of Origin: ChinaFeatures:1) Visual aim, manual measure, easy operation2) Measuring range: -180 ~ +180°3) Minimum value in reading: 0.05°4) Acc

Polariscopes are used to quickly and easily check if gemstones are single or double refracting, very useful in identifying moissanite and detecting strain in diamonds and other gems. Polariscopes are

Polariscopes are used to quickly and easily check if gemstones are single or double refracting, very useful in identifying moissanite and detecting strain in diamonds and other gems. Polariscopes are

Product Name: PolariscopePlace of Origin: ChinaPolariscopes are used to quickly and easily check if gemstones are single or double refracting, very useful in identifying moissanite and detecting strai

Product Name: Portable Dial Gem GaugeModel Number: dial gem gaugePlace of Origin: ChinaSpecifications:1) Measuring range: 0-12mm/0-0.52) Resolution: 0.01mm/0.00053) Accuracy: ±0.02mm/±0.