Industry Analog Principle Online Type Dissolved Oxygen Sensor
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Product Highlights
- High Stability Membrane: Features grit mesh metal membrane for high stability and stress resistance in harsh environments.
- Ultra Pressure Resistant: Designed to withstand ultra pressure up to 0.6Mpa wallop for industrial applications.
- Long Sensor Life: Sensor life exceeds 2 years with minimal maintenance volume required.
- Wide Application Scope: Suitable for urban sewage, industrial wastewater, aquaculture, and environmental monitoring.
- High Accuracy: Provides high precision with accuracy of 0.01mg/L and drift less than 2%.
- Customizable Shell Material: Electrode shell available in PVC or 316L Stainless Steel based on requirements.
- Fast Response Time: Achieves 90% response in just 2 minutes at 20 degrees Celsius.
- Comprehensive OEM/ODM: Supports OEM and ODM services with 20+ years of R&D experience.
Product Attributes
- Customization
- Available
- After-sales Service
- Support
- Warranty
- Support
- Model NO.
- DOG-209FA
- Measuring Range
- 0-20mg/L
- Temperature
- 0-60 C
- Accuracy
- 0.01mg/L
- Zero Oxygen
- <0.1mg/L
- Electrode Shell Material
- PVC or 316L Stainless Steel
- Output
- Analog Sensor
- Usage
- Liquid Level Sensor, Thermal Sensor
- Theory
- Polarography
- Membrane
- Steel Grit Metal Membrane
- Product Name
- Dissolved Oxygen Sensor
- Dissolved Oxygen Electrode
- 0-20mg/L
- pH Sensor
- 0-14pH
- Transport Package
- Carton Box
- Specification
- SGS, CE, ISO9001
- Trademark
- BOQU
- Origin
- Shanghai
- HS Code
- 9027899090
- 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.
Product Images of Industry Analog Principle Online Type Dissolved Oxygen Sensor
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Product Description

DOG-209FA type oxygen electrode improved from the previously dissolved oxygen electrode, change
diaphragm into a grit mesh metal membrane, with high stability and stress resistant, can be used in a more
harsh environment, maintenance volume is smaller, suitable for urban sewage treatment, industrial
wastewater treatment, aquaculture and environmental monitoring and other fields of continuous measurement
of dissolved oxygen.
| Ultra resistant to pressure (0.6Mpa) wallop, imported (grit mesh metal membrane) | |
| Up thread: M32 * 2.0 | Measuring range: 0-20mg / L |
| Measuring principle: Current type sensor (polarographic electrode) | |
| Breathable membrane thickness: 100μm | |
| Electrode shell material: PVC or 316L stainless steel | |
| Temperature compensation resistance: Pt100, Pt1000, 22K, 2.252K, etc. | |
| Sensor life:> 2 years | Cable length: 5m |
| Detection limit: 0.01 mg / L (20 ºC) | Measurement limit: 40 mg / L |
| Response time: 2min (90%, 20 ºC) | Polarization time: 60min |
| Minimum flow rate: 2.5cm / s | Drift: <2%> |
| Measurement error: <± 0.01="" mg=""> | |
| Output Current: 50-80nA/0.1 mg / L Note: Maximum current 3.5uA | |
| Polarization voltage: 0.7V | Zero oxygen: <0.01 mg=""> |
| Calibration interval:> 60 days | Measured water temperature :0-60 ºC |
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, Monitoring for compliance, Optimization of wastewater
treatment processes, Development of process control algorithms Identification of cross-connected sewers,
Identification of pollution sources, Rapid assessment of incident severity, Advanced treatment monitoring &
protection, Effluent pollution, 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 and electrode etc.


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: Dissolved Oxygen Sensor etc
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.

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
- Who are we?
- BOQU instrument focus on R&D and production of Water Quality analyzer&sensor since 2007. Our mission is to be brightest eye for water quality monitoring on earth. Employees: 200+ people, Annual growth rate: 35%, R&D experiences: 20+ years, Technical patents: 50+, Annual production quantities: 150,000pcs, Cooperation companies: Boehringer Ingelheim,CM, Roche, Main Industries: Power plant, Water treatment plant, Drinking water, Pharmaceutical, Fish farming, Swimming pool.
- How can we guarantee quality?
- 1) 100% OQC for all of products before shipping 2)Testing pictures and videos to be provided before shipping
- What's our main business?
- Whole solution for water quality instruments. Including analyzers and sensors for pH, COD, BOD, conductivity, Dissolved Oxygen, Turbidity, TSS, Residual chlorine, Ammonia, Nitrate, Hardness and etc..
- Why choose us instead of other suppliers?
- 1) Manufacturer was established since 2007, top supplier of water quality instrument. 2)One stop solution provider for water quality monitoring, thousands of projects reference. 3)24 hours after-sales service team, products training on time. 4)20+ years R&D experience, support OEM & ODM service. 5)50+ Patents for water quality analyzer and sensor
- What service can we provide?
- Incoterms: FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES; Payment Currency: USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY,CHF; Payment method: T/T, MoneyGram, Credit Card, PayPal,Western Union, Cash, Escrow; Language: English, Chinese, Spanish, Korean
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