What quality assurance measures are taken?

We perform 100% OQC for all products before shipping and provide testing pictures and videos for confirmation.

What is the polarization voltage and time required?

The polarization voltage is 0.7V, and the polarization time is 60 minutes.

What is the minimum flow rate required for measurement?

The minimum flow rate required is 2.5cm/s to ensure accurate measurement.

High Quality Ppm Dissolved Oxygen Sensor

Name: High Quality Ppm Dissolved Oxygen Sensor
Brand: Shanghai Boqu Instrument Co., Ltd.
SKU: 758917745

Shanghai, ChinaShanghai Boqu Instrument Co., Ltd.

US$199.00-399.00

1 Piece

Product profile

Customization

Available

After-sales Service

Provided

Warranty

Provided

Model NO.

DOG-209F

Measuring Range

0-20mg/L

Polarization Voltage

0.7V

Measured Water Temperature

0-60oc

Output

Analog Sensor

Usage

Liquid Level Sensor, Thermal Sensor

Theory

Polarography

Transport Package

Carton Box

Specification

SGS, CE, ISO9001

Trademark

BOQU

Origin

Shanghai

HS Code

9027809900

Production Capacity

1000piece/Month

Key features

High Stability & Reliability: Designed for harsh environments with low maintenance requirements and continuous measurement capability.

Wide Application Scope: Suitable for urban sewage, industrial wastewater, aquaculture, environmental monitoring, and more.

Long Sensor Life: Durable construction ensures a sensor life of over 2 years with minimal drift.

Flexible Material Options: Electrode shell available in PVC or 316L stainless steel to suit different installation needs.

OEM & ODM Support: 20+ years R&D experience supports customized solutions and private label services.

Comprehensive Quality Control: 100% OQC inspection before shipping with testing pictures and videos provided.

Low Calibration Frequency: Extended calibration intervals of over 60 days reduce operational workload.

Company profile

Shanghai Boqu Instrument Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2014-01-06 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤7.46h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShanghai Boqu Instrument Co., Ltd. is identified as a China-based manufacturer established in 2007, with 111 employees and operations in Pudong, Shanghai. It produces electrochemical instrumentation and electrodes, including pH, conductivity, dissolved oxygen, turbidity, ion concentration, and flow-measurement products. The supplier reports ISO9001:2015 and ISO14001:2015 certifications, two production lines, a 1,368 m² manufacturing plant, ten years of R&D engineer experience, and six to ten quality-control staff. Its export activity began in 2014, with exports representing 21%–30% of sales. The company states that it provides after-sales service and uses advanced technology and equipment, but the slices do not provide measurable service performance, innovation outputs, customization evidence, or detailed customer case results.

Supplier typeThe supplier is classified as a manufacturer and is described as a professional manufacturer of electrochemical instrumentation and electrodes with R&D, production, and sales capabilities. Its registered address and factory location are both in Pudong, Shanghai, China.

CertificationsThe supplier reports holding ISO9001:2015 and ISO14001:2015 management-system certificates. These explicitly support quality-management and environmental-management certification, although certificate scope or validity details are not provided.

After-Sales capabilityThe company explicitly states that it focuses on after-sales service and offers “perfect after-sales service,” and claims this has helped earn customer and partner trust. However, no service-team size, response-time data, warranty terms, or service records are provided.

Production capacityThe supplier reports a manufacturing plant of 1,368 m², two production lines, six to ten quality-control staff, and ten years of R&D engineer experience. Its product range covers multiple electrochemical instruments and sensors, and it is identified as the manufacturer of listed BOQU products, providing explicit evidence of production capability.

Product Q&A

Q:What is the measuring range of the sensor?

The measuring range is 0-200ug/L or 0-20mg/L, with a detection lower limit of 0.01 mg/L and an upper limit of 40mg/L.

Q:What are the suitable application scenarios?

It is suitable for continuous measurement in urban sewage treatment, industrial wastewater treatment, aquaculture, environmental monitoring, and other fields.

Q:What is the expected lifespan of the sensor?

The sensor life is greater than 2 years, with a drift of less than 2% per month.

Q:What materials are used for the electrode shell?

The electrode shell material can be PVC or 316L stainless steel, depending on the specific requirement.

Q:Does the manufacturer support OEM and ODM services?

Yes, with over 20 years of R&D experience and 50+ patents, we support OEM and ODM services.