Model Number: EC900 Brand Name: TLead Key Specifications/Special Features: This meter is a perfect combination with the most advancedelectronic technology, sensor technology and software design. Themeter can measure the parameters of pH, mV, conductivity, TDS,salinity, resistivity, DO and temperature for high accuracy watersolutions. It is the best portable water analysis meter with thehighest performance and the lowest cost. It is suitable forindustries such as the mining, power generation, water treatment,environmental protection, and other applications in the field andin spot tests.pHMeasuring range:(-2.00 ~ 19.99) pHResolution:0.1/0.01 pHAccuracy: Meter: ±0.01pH; Overall: ±0.02pH

Input current: d2×10-12 A

Input impendance: e1×1012

Stability: ±0.01 pH/3h

Temp. Compensation Range: (0 to 100) (automatic)

mV: (probe optional)

• Measuring range: -1999mV to 0 to 1999mV
• Resolution: 1mV
• Accuracy: ±0.1% FS

Conductivity

• 0.00 ~ 19.99S/cm; 20.0 ~ 199.9S/cm; 200 ~1999S/cm
• 2.00 ~ 19.99mS/cm; 20.0 ~ 199.9mS/cm
• TDS: 0 ~ 100g/L
• Salinity: 0 ~ 100ppt
• Resistance: 0 ~ 100M·cm
• Resolution: 0.01/0.1/1S/cm 0.01/0.1 mS/cm
• Accuracy: Meter: ±1.0% FS, Overall: ±1.5% FS
• Temp. compensation range: 0 ~ 50 (automatic)
• Electrode constant: 0.1 / 1 / 10 cm-1
• Benchmark temperature: 25, 20and 18

Dissolved Oxygen:

• Measuring range: 0 ~ 40.00mg/L (ppm); 0 ~ 200.0%
• Resolution: 0.1/0.01 mg/L (ppm); 1/0.1%
• Accuracy: Meter: ±0.10 mg/L, Overall: ±0.40mg/L
• Response time: d30 s (25, 90% response)
• Residual current: d0.1 mg/L
• Temp. Compensation Range: 0 to 45 (automatic)
• Salinity Compensation Range: 0 ~ 45ppt (automatic)
• Barometric pressure: 66 to 200kPa (manual)
• Automatic Calibration: Air saturated by water; water saturatedby air
• Electrode type: Polarogram type