Model 307 Conductivity Meter Certificate : CE Characteristics: 1.Double digits LCD display with big screen and blue back light, display conductivity value and temperature value or TDS value and temperature value simultaneously. 2.With conductive electrode constant compensation. 3.With manual or automatic temperature compensation. 4. Electrode constant: 0.01,0.1,1.0 and 10.0cm^-1 SPECIFICATIONS 1.Measuring range: Conductivity:(0~1x104) uS/cm. Temperature: (0~60)Centigrade Degrees　　　　 TDS: (0~1000)mg/L 2.Accuracy of the electronic unit: +_0.5%(FS) +_1bit[(0~2x103) uS/cm] +_1.0%(FS) +_1bit[(2x103~1x104)uS/cm] +_0.3Centigrade Degrees +_1bit 3.Accuracy of the meter: +_1.0%(FS) +_1bit +_0.5 Centigrade Degrees+_1bit 4.Temp. compensation accuracy of the electronic unit: +_0.5%(FS) +_1bit[(0~2x103) uS/cm] +_1.0%(FS) +_1bit[(2x103~1x104)uS/cm] 5. Stability of the electronic unit: +_0.33%(FS) +_1bit/3h, [(0~2x103) uS/cm] +_0.66%(FS) +_1bit/3h,[(2x103~1x104)uS/cm] 6. Reproducibility of the electronic unit: 　　0.17%(FS), [0~2x103] uS/cm 　　0.33%(FS), [(2x103~1x104) uS/cm] 7. Accuracy of temperature compensation: (0 - 40) Centigrade Degrees