pH Sensors Fast and Reliable Measurements POM Material Use for Seawater
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Product Highlights
- RS485 Modbus RTU Support: Built-in RS485 interface for host computer connection via ModbusRTU protocol for monitoring and recording.
- Wide Measuring Range: Measures pH from -2.00 to +16.00 pH and ORP from -2000mV to +2000mV with high resolution.
- IP65 Waterproof Grade: Robust IP65 waterproof design ensures safety and reliability in various industrial environments.
- Versatile Installation: Flexible installation options including panel, wall, and pipe mounting for diverse application needs.
- OEM/ODM Service Available: Supports OEM and ODM services, backed by 20+ years R&D experience and 50+ patents.
Product Attributes
- Customization
- Available
- After-sales Service
- Support
- Warranty
- Support
- Model NO.
- PHG-2081Pro
- Display
- Digital
- Portable
- Non Portable
- Appliance
- Food Analysis, Biochemistry
- Certification
- ISO9001, CE
- Measuring Range
- 0-14pH
- Accuracy
- 0.01pH
- Temperature Range
- 10.0 to +130.0℃
- Product Name
- pH Meter
- Waterproof Grade
- IP65
- Output
- 4-20mA
- Communication
- RS485
- Transport Package
- PP Bag, Paper Box. Sponge, Seaworthy Box, Wooden
- Specification
- 144*144*104(mm)
- Trademark
- BOQU
- Origin
- Shanghai
- HS Code
- 9026209090
- Production Capacity
- 1000piece/Month
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description
Built-in A/D conversion module, compatible with a variety of analog signal electrodes. Complete functions,
stable performance, easy operation, low power consumption, safety and reliability are the outstanding
advantages of this instrument. This instrument is equipped with RS485 transmission interface, which
can be connected to the host computer through ModbusRTU protocol to realize monitoring and recording.
It can be widely used in industrial occasions such as thermal power generation, chemical industry, metallurgy,
environmental protection, pharmaceutical, biochemical, food and tap water.



| Functions | pH | ORP |
| Measuring range | -2.00pH to +16.00 pH | -2000mV to +2000mV |
| Resolution | 0.01pH | 1mV |
| Accuracy | ±0.01pH | ±1mV |
| Temp. compensation | Pt 1000/NTC10K | |
| Temp. range | -10.0 to +130.0ºC | |
| Temp. compensation range | -10.0 to +130.0ºC | |
| Temp. accuracy | ±0.5ºC | |
| Display | Back light, dot matrix | |
| pH/ORP current output1 | Isolated, 4 to 20mA output , max. load 500Ω | |
| Temp. current output 2 | Isolated, 4 to 20mA output , max. load 500Ω | |
| Current output accuracy | ±0.05 mA | |
| RS485 | Mod bus RTU protocol | |
| Baud rate | 9600/19200/38400 | |
| Maximum relay contacts capacity | 5A/250VAC,5A/30VDC | |
| Language selection | English/ Chinese | |
| Waterproof grade | IP65 | |
| Power supply | From 90 to 260 VAC, power consumption < 4 watts, 50/60Hz | |
| Material | ABS | |
| Installation | panel/wall/pipe installation | |
| Size/Weight | 144mm×144mm×104mm, 0.9Kg | |

BOQU was found since 2007, now has more 100 staff and engineers, instruments has be exported to
over 100 countires.,Now BOQU has been named as High-Tech Enterprice by goverment,ISO,CE, SGS is
our common certicates. the core technology of electrode ,controller and 50+ software property is our
based. all instruments has been recognized by National Metrology Bureau.there is many small factories
in China, you should be carefully if they provide you very low price. this is tips for you in free.

pp bag, paper box. sponge, seaworthy box, wooden box;
Mainly product: pH meter, pH analyzer, pH controller, pH sensor, dissoved oxygen sensor etc
Shanghai BOQU Instrument Co.,Ltd was established in 2007, and located in Kangqiao Town Pudong New
Area Shanghai. It is the professional manufacturer of electrochemical instrumentation and electrode combine
with the R&D, production and sales. The main products include pH, ORP, conductivity, ion
concentration, dissolved oxygen, turbidity, alkali acid concentration COD, BOD, TP, TN
and electrode etc.



FAQ
1.Who are we?
BOD, conductivity, Dissolved Oxygen, Turbidity, TSS, Residual chlorine, Ammonia, Nitrate, Hardness and etc..
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR2142034". Items marked "" are certified.
Company Profile
Shanghai Boqu Instrument Co., Ltd was established in 2007, and located in Kangqiao Town Pudong New Area Shanghai. It is the professional manufacturer of electrochemical instrumentation and electrode combine with the R&D, production and sales. The main products include pH, ORP, conductivity, ion concentration, dissolved oxygen, turbidity, alkali acid concentration and electrode etc.
Our company focus on product quality and after-sales service, adhere to the quality principle of"Aspiring excellence, Creating perfect", obedience to the work style of "Integrity rigorous, Pragmatic and Efficient", to promote "Innovation, Development and Win-Win " spirit of enterprise, with advanced technology and equipment, professional technology as the foundation, high-quality products and perfect after-sales service won the trust of our customers and partners!
We sincerely hope that on the basis of mutual benefit with friends at home and abroad to join hands in creating development and harmonious! Welcome domestic and foreign merchants to come to seek common cause!
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory
- Address
- No. 118 Xiuyan Road, Pudong District, Shanghai, China
-
Plant Area
- 1368 square meters
-
Number of Employees
- 111
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Shanghai Port
Our Production Capability & Technical Expertise
-
Main Products
- PH, ORP, Conductivity, Dissolved Oxygen, Residual Chlorine, Turbidity, TSS, Ion Ammonia Nitrogen, Nitrate Nitrogen, Blue-Green Algae, Chlorophyll A, COD Analyzer & Sensor (electrode)
-
Production Machines
- Assembly Line
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 10 people
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2007-05-23
- Export Year
- 2014-01-06
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia, Domestic
-
Number of Foreign Trading Staff
- 12
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CE
FAQ
- What communication protocols does the pH meter support?
- The instrument is equipped with an RS485 transmission interface and supports the ModbusRTU protocol for connecting to a host computer.
- What is the measuring range for pH and ORP?
- The measuring range is -2.00pH to +16.00 pH for pH and -2000mV to +2000mV for ORP.
- What is the waterproof grade of the instrument?
- The instrument has an IP65 waterproof grade, ensuring safety and reliability in industrial occasions.
- What certifications does the product hold?
- The product holds ISO9001 and CE certifications, and the company also has SGS certification.
- What are the typical application scenarios for this pH meter?
- It is widely used in thermal power generation, chemical industry, metallurgy, environmental protection, pharmaceutical, biochemical, food, and tap water industries.
- Does the manufacturer support OEM and ODM services?
- Yes, the manufacturer supports OEM and ODM services, backed by over 20 years of R&D experience and 50+ patents.
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