
Year quantity of BOQU Instrument has been over 100 000pieces since 2018,now built two factories in Shanghai China,OEM/ODM for mainly international water quality analyzer.BOQU Instrument has a variety of process pH meter and orp meter designed specifically for waste water,clean water,pure water,fermentation, sterilization.PHG-2091 Online pH meter is popular used for waste water and clean water such as pulp & paper, textiles, metal plating, and heavy industries,drinking water, bottled water,farming,swimming pool,aquaculture etc.PHG-2081X is multifunctional pH ORP meter ,widely used for pure or ultra pure water, such as steam and water analysis system in power plant.for food,dairy industries,brewing,Pharma, Biotech,CIP,SIP,users mainly choose pHG-2081X or VBQ online pH ORP Meter,because the temperature compensation can be up to 130C and with FDA certificate.another side,VBQ Online pH meter warranty is 3 years.
What's the technical specification of waste water treatment cost digital ph instrument meter ?

PHG-2081S | PHG-2081X | PHG-2091/ORP2096 |
Name:Online pH ORP Meter Measure range: pH:-2.00~16.00 ORP:-2000~2000mV, Temp:-30.0~130.0ºC Accuracy, ±1%FS,±0.5ºC Power :90 - 260V AC 50/60Hz Output: 2 way of 4-20mA (pH .temperature) Thress Relays :5A/250V AC 5A/30V DC RS485 Modbus RTU Protection :IP65 with Datalogger | pH: -2.00 ~ +16.00 ORP:-2000mV ~ +2000mV Accuracy ±0.01pH ±1mV Temp. Comp.Pt 1000/NTC10K Temp. range -10.0 ~ +130.0ºC 2 ways of 4-20mA RS485 Modbus RTU 3 Relays Protection IP65 Power 90~260VAC Data recording:500 000times | pH:0~14.00pH, ORP:-2000mv~2000mv Precision:0.05pH Temp comp: 0~100ºC 4-20mA RS485 Modbus 2 Relay Powery: AC220V Dimension:96*96mm |
What's the technical specification of Online pH Sensor ?

BOQU Online pH Sensor | ||||
Model | CPH-809X | pH8011 | BH-485-pH | BH-485-ORP |
Name | Desulfurization pH Sensor | Antimony pH Sensor | Digital pH Sensor | Digital ORP Sensor |
Range | 0~14pH | 0~14pH | 0~14pH | -2000mv~+2000mv |
Temperature | 0~95C | 0~60C | 0~60C | 0~60C |
Power | NULL | NULL | 12VDC | 12VDC |
Temperature compensation | PT1000,PT100,10K,30K etc | |||
Max pressure | 3bar | 3bar | 3bar | 3bar |
Material | PPS | PPS/PC | PPS/PC | PPS/PC |
Thread | NPT3/4 | NPT3/4 | NPT3/4 | NPT3/4 |
Cable | lower-noise cable/water proof cable |

Model: PHG-2091 PRO | Model;PHG-2081 PRO | ||
Measurement | pH/ORP/Temperature | Measurement | pH/ORP/Temperature |
Measuring range | -2 ~16 pH,-2000 ~2000 mV,-30 ~130 ºC | Measuring range | -2 ~16 pH,-2000 ~2000 mV,-30 ~130 ºC |
Shell material | ABS plastic | Shell material | ABS plastic |
Power supply | 90 - 260V AC 50/60Hz | Power supply | 90 - 260V AC 50/60Hz |
Output | Two ways 4-20mA output,RS485 | Output | Two ways 4-20mA output,RS485 |
Relay | 2 relays | Relay | 3 relays |
Temp. Comp. | PT1000/NTC10K | Temp. Comp. | PT1000/NTC10K |
Data logger | 1000 times | Data logger | 1000 times |

Mainly Application of Ground water/Sewage treatment for ph and orp meter
In today's world, our earth faces many environmental problems, especially in water quality. As a leading manufacturer in water quality analyzers, BOQU Instrument will use all technologies to solve problems related to human and earth survival and always to be the guardians of the earth's water quality. BOQU Instrument's online water quality analyzer is mainly used to test pH, conductivity, TDS, dissolved oxygen, turbidity, residual chlorine, suspended solids,TSS, ammonia, water hardness, silica, phosphate, sodium, BOD, COD,Ammonia nitrogen ,total nitrogen,chloride,lead ,iron,nickel,fluoride,copper,zinc etc. mainly application for Agriculture,Food and Beverages,Water Analysis,Healthcare and Pharmaceutical,Paints and Dyestuff Industry,Cosmetics, Flavors and Fragrances,Electroplating Industry.
BOQU Instrument focuses on technological innovation in water quality analyzers and water quality sensors since founded at 2007. now staff is over 200 people and with an annual growth rate of 35%. we have own R & D center,many senior engineers has over 10 years R&D experience..Now BOQU has got more than 50 technical certificates for controller software and over 20 technical patents,therefore we won the National High-tech Enterprise Certificate in 2010.At present, the annual quantity of water quality sensors and meters is over 100,000pcs, it let BOQU instrument become the biggest factory in water quality analyzers in Shanghai China.

The BOQU Instrument is a young, energetic and professional team. We will continue to focus on R&D and manufacturing of high-end water quality monitoring instruments and sensors.we keep to create benefits for our customers,We work hard for the material and spiritual aspects of all employees,and contribute to the progress and development of humanity. forever to guard the earth's water quality.

BOQU Instruments is very popular in all global market, because BOQU Water quality anaysis instrument and sensors got most international certicates. As a responsible and high-tech enterprise in China,BOQU Instrument thinks there is still long way to go,so our production is strictly according to ISO9001 from source of raw material to finished instrument. And their is professional staff and test instrument to check each process.now our many instruments have reached or exceeded the world-class level. BOQU instrument also got many certificates such as CE, SGS,FCC and so on.

In order to provide better service for our customers, we will visit customers in different countries.Only in this way,then we could truly understand customer needs and help customers to choose right water quality analyzers and sensors.

FAQ of waste water treatment cost digital ph instrument meter
1.What is a pH meter?A pH meter is an scientific device used to measure the activity of hydrogen ions in a solution, which is then expressed as pH. Measuring pH is a widely applied technique in various fields and ranges from laboratory measurements to process applications. With our pH measuring devices, one can also measure other important parameters like Conductivity, Ion Concentration, ORP, and Dissolved Oxygen. This page showcases the types of laboratory pH meters and their applications.
2.What's the The pH Scale: Acidic, Neutral, and Basic?
The pH scale describes the acidity of the solution: acidic, neutral, or basic A solution with a pH less than 7 is an acid, exactly 7 is a neutral solution, and above 7 is a base. Bases have fewer hydrogen ions but more hydroxide ions, represented by the pOH or "potential of hydroxide ions."
3.How does a digital pH meter work?
A pH meter measures the potential differences between a reference electrode (like Calomel or Ag/AgCl) and a pH electrode (glass electrode). This difference between the two electrodes is related to the concentration of H+ ions in the solution. Therefore, the difference in potential corresponds to the acidity / pH of the solution.
4.What are the different applications of a pH measurement instrument?
Agriculture,Food and Beverages,Water Analysis,Healthcare and Pharmaceutical,Paints and Dyestuff Industry,Cosmetics, Flavors and Fragrances,Electroplating Industry
5.Is it necessary to calibrate the pH meter? How to better perform a calibration?
Yes, calibration helps in determining that the instrument is functioning correctly. Calibration is necessary to adjust the slope and offset of an pH electrode to their true values for the measuring system in question. With routine calibration of the instrument, one can confidently do the measurements. pH meters are calibrated with appropriate laboratory calibration solutions of known pH. The frequency of calibration depends upon the frequency of the usage of the pH meter and applications. For details please refer to user manual of BOQU Instrument.
6.Does BOQU Instrument support installation qualification?
Yes,we offer professional installation, qualification and calibration services. These services will guarantee accurate and precise measurements making the user worry-free when it comes to possible compliance issues during quality audits.