8 IN 1 Professional pH/mV Conductivity/DO Meter EC900
This meter is a perfect combination with the most advanced electronic technology, sensor technology and software design. The meter can measure the parameters of pH, mV, conductivity, TDS, salinity, resistivity, DO and temperature for high accuracy water solution. It is the best portable water analysis meter with the highest performance and the lowest cost. It is suitable for the trade such as the mining industry, power plant, water treatment projects and environmental protection, etc., especially has more extensive application in the field and spot test.

Specifications:
1. pH:
-Measuring range: -2.00 ~ 19.99pH
-Resolution: 0.1/0.01 pH
-Accuracy: Meter: ±0.01pH; Overall: ±0.02pH
-Input current: ≤2×10~12A
-Input impendence: ≥1×1012Ω
-Stability: ±0.01 pH/3h
-Automatic Temp. Compensation Range: 0 to 100°C

2. ORP: (probe optional)
-Measuring range: -1999mV to 0 to 1999mV
-Resolution: 1mV
-Accuracy: ±0.1% FS

3. Temperature: 32 to 212°F (0 to 100°C)

4~7. Conductivity/TDS/Salinity/Resistivity:
-Measuring range:
a) Conductivity: 0.00~19.99μS/cm; 20.0~199.9μS/cm; 200~1999μS/cm; 2.00~19.99mS/cm; 20.0~199.9mS/cm
b) TDS: 0 ~ 100g/L
c) Salinity: 0 ~ 100ppt
d) Resistivity: 0 ~ 100MΩcm
-Resolution: 0.01/0.1/1μS/cm; 0.01/0.1mS/cm
-Accuracy: Meter: ±1.0% FS, Overall: ±1.5% FS
-Automatic Temp. compensation range: 0 ~ 50°C
-Electrode constant: 0.1/1/10cm-1
-Benchmark temperature: 25°C, 20°Cand 18°C

8. 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: ±0.40 mg/L
-Response time: ≤30s (25°C, 90% response)
-Residual current: ≤0.1 mg/L
-Automatic Temp. Compensation Range: 0 to 45°C
-Automatic Salinity Compensation Range: 0 ~ 45ppt
-Barometric pressure: 66 to 200kPa (manual)
-Automatic Calibration: Air saturated by water; water saturated by air
-Electrode type: Polarogram type