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Model | Description | Application |
P711 | pH meter | General laboratory pH meter, which can be used in most of the areas related to water quality analysis. |
P712 | Conductivity meter | Used to measure the conductivity value of conventional aqueous solutions, especially in education and scientific research. |
P713 | pH/Conductivity meter | Suitable for high-precision pH/conductivity measurement in scientific research, quality control, biotechnology, fine chemicals,etc. |
P714 | DO meter | Applicable to aquaculture, water source monitoring, sewage treatment and environmental monitoring, etc., also widely used in education and scientific research. |
P715 | pH/DO meter | Suitable for biotechnology, aquaculture, power plants and environmental protection industries, especially in education and research. |
P716 | Conductivity/DO meter | Widely used in biotechnology,aquaculture,power plants and environmental protection industries. |
P717 | pH/Conductivity/DO meter | Suitable for the fields of petroleum, chemical, pharmacy, power plants and environmental protection, also widely used in education and scientific research. |
P718-F | Fluoride ion meter | Test and analysis of the fluoride in drinking water, surface water, sea water, living sewage and industrial wastewater and the fluorine ion in mineral ,organic,and biological materials. |
P718-Na | Sodium ion meter | Suitable for measurement of sodium ion and pH value in natural water,boiler water and industrial drainage,especially for the quality monitoring of high purity water in power plant. |
P718-Cl | Chloride ion meter | Measure chloride ion and pH value in drinking water, food and sewage. |
P718-Ca | Calcium ion meter | Test calcium ion and pH value of water solutions. Widely used in the analysis and research of water quality, biochemistry and biomedicine. |
P718-Br | Bromide ion meter | Test bromide ion and pH value in drinking water, food and sewage. |
P718-NO | Nitrate ion meter | Test nitrate ion and pH value in drinking water, food and sewage. |
P718-K | Potassium ion meter | Measure potassium ion and pH value in drinking water, food and sewage. |
P718-NH | Ammonia Ion Meter | Test ammonia & nitrogen and pH value in drinking water, food and sewage. |
P718-Cu | Copper ion meter | Test copper ion and pH value in food, beverage, electroplating industry and sewage. |
P718-I | Iodide ion meter | Test iodide ion and pH value in drinking water, food and sewage. |
Model | P711 | P712 | P713 | P714 | P715 | P716 | P717 | P718 | ||
Standard Accessaries | Electrode holder | √ | √ | √ | √ | √ | √ | √ | √ | |
pH composite electrode | √ | √ | √ | √ | ||||||
Cond. electrode (K=1) | √ | √ | √ | √ | ||||||
DO electrode | √ | √ | √ | √ | ||||||
Ion electrode | √ | |||||||||
Temperature probe | √ | √ | √ | √ | √ | √ | √ | √ | ||
Reference electrode | √ | |||||||||
pH buffer solution | √ | √ | √ | √ | ||||||
DO filling solution | √ | √ | √ | √ | ||||||
Membrane cap | √ | √ | √ | √ | ||||||
Cathode polishing paper | √ | √ | √ | √ | ||||||
Power adapter | √ | √ | √ | √ | √ | √ | √ | √ | ||
Manual | √ | √ | √ | √ | √ | √ | √ | √ | ||
Model | P711 | P712 | P713 | P714 | P715 | P716 | P717 | ||||
Parameters | pH/mV | √ | √ | √ | √ | ||||||
Measuring range | ISE | ||||||||||
Resolution | Cond./TDS/Sal./Res. | √ | √ | √ | √ | ||||||
Accuracy | DO | √ | √ | √ | √ | ||||||
Auto calibration | Temp. | √ | √ | √ | √ | √ | √ | √ | |||
pH | Measuring range | (-2.00 ~ 18.00)pH | √ | √ | √ | √ | |||||
Resolution | 0.01 pH | ||||||||||
Accuracy | Electrode:±0.01 pH, Meter:±0.02 pH | ||||||||||
Auto calibration | 1, 2, 3 point | ||||||||||
Buffer | Europe & USA, NIST, China standards | ||||||||||
mV ORP | Input current | ≤2×10-12 A | |||||||||
Input impedance | ≥1×1012 Ω | ||||||||||
Stability | ±0.02 pH/3h | ||||||||||
pX | Temp. compensation | (0 ~ 100)℃, auto or manual | |||||||||
mV ORP | Measuring range | ±1999.9mV | √ | √ | √ | √ | |||||
Resolution | 0.1 mV | ||||||||||
Accuracy | ±0.03% FS | ||||||||||
pX | Measuring range | (0.000-14.000) pX | |||||||||
Ion Conc. | Resolution | 0.01 pX | |||||||||
Accuracy | ±0.02 pX | ||||||||||
Temp. compensation | (0 ~ 100)℃, auto or manual | ||||||||||
Cond. | Auto calibration | 1, 2, 3, 4, 5 point | |||||||||
Ion Conc. | Measuring range | (0-19990) | |||||||||
Resolution | 4 significant figures (scientific notation) | ||||||||||
Accuracy | ±0.5% | ||||||||||
Cond. | Measuring range | Conductivity: | √ | √ | √ | ||||||
(0.00~20.00)μS/cm, (20.0~200.0)μS/cm | |||||||||||
(200~2000)μS/cm, (2.00~20.00)mS/cm | |||||||||||
(20.0~200.0)mS/cm, | |||||||||||
(200~2000)mS/cm (K=10) | |||||||||||
TDS:(0 ~ 100)g/L | |||||||||||
Salinity:(0 ~ 100)ppt | |||||||||||
Resistivity:(0 ~ 100)MΩ·cm | |||||||||||
Resolution | 0.01/0.1/1μS/cm; 0.01/0.1mS/cm | ||||||||||
Accuracy | Electrode: ±0.5% FS, Meter: ±0.8% FS | ||||||||||
Temp. compensation | (0 ~ 50)℃, auto | ||||||||||
Electrode constant | 0.1 / 1 / 10 cm-1 | ||||||||||
Reference Temp. | 25℃、20℃、18℃ | ||||||||||
DO | Measuring range | (0-20.00)mg/L(ppm), (0-200.0)% | √ | √ | √ | √ | |||||
Resolution | 0.1/0.01 mg/L(ppm), 1/0.1 % | ||||||||||
Accuracy | Electrode: ±0.10 mg/L, Meter: ±0.40 mg/L | ||||||||||
Response time | ≤30s (25℃, 90%response) | ||||||||||
Residual current | ≤0.1 mg/L | ||||||||||
Temp compensation | (0 ~ 45)℃, auto | ||||||||||
Salinity compensation | (0 ~ 45) ppt, auto | ||||||||||
Pressure compensation | (80 ~ 105) kPa, auto | ||||||||||
Auto calibration | Air saturated by water, water saturated by air | ||||||||||
Electrode type | Polarographic | ||||||||||
Temp. | Measuring range | (0 ~ 100)℃ | √ | √ | √ | √ | √ | √ | √ | ||
Resolution | 0.1℃ | ||||||||||
Accuracy | 5 ~ 60℃:±0.4℃ Others: ±0.8℃ | ||||||||||
Other | Display | 6.5-inch LED screen | √ | √ | √ | √ | √ | √ | √ | ||
Data storage | 1000 sets | ||||||||||
Power | 12V/1A | ||||||||||
Output | USB | ||||||||||
Ambient Temp. | 5 ~ 35 ℃ | ||||||||||
Ambient Humidity | ≤85% | ||||||||||
IP grade | IP54 | ||||||||||
Dimensions/N.W. | 215×170×37mm/600g | ||||||||||
Shipping Size/G.W. | 470x430x72mm/3kg | ||||||||||
Model | P718 | |||
Parameters | pH/mV | √ | ||
ISE | √ | |||
Cond./TDS/Sal./Res. | ||||
DO | ||||
Temp. | √ | |||
pH | Measuring range | (-2.00 ~ 18.00)pH | √ | |
Resolution | 0.01 pH | |||
Accuracy | Electrode:±0.01 pH, Meter:±0.02 pH | |||
Auto calibration | 1, 2, 3 point | |||
Buffer | Europe & USA, NIST, China standards | |||
Input current | ≤2×10-12 A | |||
Input impedance | ≥1×1012 Ω | |||
Stability | ±0.02 pH/3h | |||
Temp. compensation | (0 ~ 100)℃, auto or manual | |||
mV ORP | Measuring range | ±1999.9mV | √ | |
Resolution | 0.1 mV | |||
Accuracy | ±0.03% FS | |||
pX | Measuring range | (0.000-14.000) pX | √ | |
Resolution | 0.01 pX | |||
Accuracy | ±0.02 pX | |||
Temp. compensation | (0 ~ 100)℃, auto or manual | |||
Auto calibration | 1, 2, 3, 4, 5 point | |||
Ion Conc | Measuring range | (0-19990) | ||
Resolution | 4 significant figures (scientific notation) | |||
Accuracy | ±0.5% | |||
Cond. | Measuring range | Conductivity: | ||
(0.00~20.00)μS/cm, (20.0~200.0)μS/cm | ||||
(200~2000)μS/cm, (2.00~20.00)mS/cm | ||||
(20.0~200.0)mS/cm, | ||||
(200~2000)mS/cm (K=10) | ||||
TDS:(0 ~ 100)g/L | ||||
Salinity:(0 ~ 100)ppt | ||||
Resistivity:(0 ~ 100)MΩ·cm | ||||
Resolution | 0.01/0.1/1μS/cm; 0.01/0.1mS/cm | |||
Accuracy | Electrode: ±0.5% FS, Meter: ±0.8% FS | |||
Temp. compensation | (0 ~ 50)℃, auto | |||
Electrode constant | 0.1 / 1 / 10 cm-1 | |||
Reference Temp. | 25℃、20℃、18℃ | |||
DO | Measuring range | (0-20.00)mg/L(ppm), (0-200.0)% | ||
Resolution | 0.1/0.01 mg/L(ppm), 1/0.1 % | |||
Accuracy | Electrode: ±0.10 mg/L, Meter: ±0.40 mg/L | |||
Response time | ≤30s (25℃, 90%response) | |||
Residual current | ≤0.1 mg/L | |||
Temp compensation | (0 ~ 45)℃, auto | |||
Salinity compensation | (0 ~ 45) ppt, auto | |||
Pressure compensation | (80 ~ 105) kPa, auto | |||
Auto calibration | Air saturated by water, water saturated by air | |||
Electrode type | Polarographic | |||
Temp. | Measuring range | (0 ~ 100)℃ | √ | |
Resolution | 0.1℃ | |||
Accuracy | 5 ~ 60℃:±0.4℃ Others: ±0.8℃ | |||
Other | Display | 6.5-inch LED screen | √ | |
Data storage | 1000 sets | |||
Power | 12V/1A | |||
Output | USB | |||
Ambient Temp. | 5 ~ 35 ℃ | |||
Ambient Humidity | ≤85% | |||
IP grade | IP54 | |||
Dimensions/N.W. | 215×170×37mm/600g | |||
Shipping Size/G.W. | 470x430x72mm/3kg | |||



















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