BOQU PHS 1701 Portable pH with LCD Display and Factory Price pH meter

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Product Overview


BOQU PHS-1701 Portable pH with LCD Display and Factory Price pH meter

Free Download Specification at

Year quantity of BOQU Instrument has been over 100 000pieces ,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-2081 Online pH ORP Meter is digital type ,it connect with Digital RS495 Modbus pH ORP Sensor;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 certificate.another side,VBQ Online pH meter warranty is 3 years.


Product Description

 BOQU PH Meter PH Online Controller with 4-20mA RS485

pH Meter.jpg

Technical parameters of PH Meter PH Online Controller with 4-20mA RS485 

VBQ1601PHPHG-2081S PHG-2081XPHG-2091/ORP2096

Temp Comp.PT 100, PT 1000, NTC 30, NTC 8.55

RS485 Modbus

2 Relay
Warranty: 3 years 

Name:Online pH ORP Meter
Measure range:



Accuracy, ±1%FS,±0.5℃
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 ~ +130.0℃
2 ways of 4-20mA

RS485 Modbus RTU
3 Relays
Protection IP65
Power 90~260VAC

Data recording:500 000times


Temp comp: 0~100℃


RS485 Modbus

2 Relay
Powery: AC220V



PHS-1701 Portable pH Meter and PHS-1705 Laboratory PH ORP Meter



PHS-1701 Portable pH meterPHS-1705 Laboratory pH meter


ORP: -1999…1999 mv
accuracy:-/+0.01pH, mV:1mV
temperature compensation:-5~105C

with instrument box


ORP: -1999…1999 mv
accuracy:0.01pH, mV:1mV
temperature compensation:0~99C


LCD display


 Different BOQU Online pH ORP Sensor pH Sensor.jpg


Mainly application of PH Meter PH Online Controller with 4-20mA RS485

We are committed to providing best water quality monitoring solutions for users in all areas of pure water,ultra-pure water, drinking water, municipal waste water, industrial waste water, industrial circulating water, environmental monitoring, and university research etc.



BOQU Instruments is very popular in foreign market, 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 our many instruments have reached or exceeded the world-class level. BOQU also got many certificates such as CE, SGS, and so on.


Factory Show

BOQU Instrument only focus on development and production Water Quality Sensors and Analyzers since found, now staff is over 100 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 in water quality anlyzers and water quality sensors.Now our company has got more than 50 technical certificates for controller software and 23 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’s the biggest factory in Shanghai.



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.

foreign exhibition.jpg

Why to choose BOQU?

Why to choose BOQU PH Meter PH Online Controller with 4-20mA RS485?

1.National High-tech Enterprises Certificates

2.Instruments has been exported to over 100 countries.

3.Production over 100 000pcs for water quality analyzer and water quality sensor

4.BOQU Instrument has more 50+ Softwares property

5.100% QC inspection and clibration Before Shippment.

6. ISO,CE,SGS,CEP Certificate.

7.BOQU Instrument OEM and ODM for many international brand.

Related Products

BOQU Instrument focuses on technological innovation in water quality analyzers and sensors since founded. Providing high precision instruments and expert-level service is our only pursuit. Now BOQU Instrument has obtained dozens of technology patents for water quality analyzers and water quality sensors. Our water quality analyzers and sensors meet or exceed world-class quality level. They have received good praise from customers in more than 80 countries. 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, ammonia, hardness,water color, silica, phosphate, sodium, BOD, COD, heavy metals, etc. We are committed to providing the best water quality monitoring solutions for users in all areas of pure water, ultra-pure water, drinking water, municipal wastewater, industrial wastewater, industrial circulating water, environmental monitoring, and university research, etc.



Conact:Phoebe Xu

Whatsapp/Mob:+86 158 7237 6841

Factory address:No.118 xiuyan road,pudong district ,shanghai china, zip code:201315


0.0134 s.