Does the controller support automatic air pressure compensation?

Yes, the controller includes a function for automatic compensation for air pressure display.

What is the measuring range for dissolved oxygen?

The measuring range is 0~50mg/L or 0~50ppm, with saturation up to 500%.

What is the power supply requirement?

The device operates on AC 100~240V at 50/60Hz.

Online RS485 4-20mA Dissolved Oxygen Controller Digital Dissolved Oxygen Meter Dissolved Do Controller for Seawater Monitoring

Name: Online RS485 4-20mA Dissolved Oxygen Controller Digital Dissolved Oxygen Meter Dissolved Do Controller for Seawater Monitoring
Brand: Suzhou Delfino Environmental Technology Co., Ltd.
SKU: 2163574545

Jiangsu, ChinaSuzhou Delfino Environmental Technology Co., Ltd.

US$191.00-223.00

1 Piece

Sample price:US$191.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

1 Year Lifetime Fee Technical Support

Warranty

1 Year Lifetime Fee Technical Support

Model NO.

DUC2-DO-A

Display

Digital

Portable

Non Portable

Appliance

Food Analysis, Medical Research, Biochemistry, Industrial Water Treatment

Certification

ISO9001, CE, SGS

Display Screen

128*64 LCD

Power Supply

100~240VAC

Power Consumption

About 7W

Protection Grade

IP66

Weight

About 800g

Analog Current Output

2 Settable 0/4~20mA Current Outputs

Do Concentration

Do Concentration 0-50mg/L (or Ppm)

Maintenance Records

Last 100

Shell Material

Enhanced ABS

Transport Package

Packaging

Specification

144*144*120mm

Trademark

drfn

Origin

China

HS Code

9031809090

Production Capacity

50000 Pieces/Year

Key features

Universal Sensor Compatibility: Specially designed for DRFN digital series dissolved oxygen sensors, compatible with all fluorescence and polarography types.

Automatic Air Pressure Compensation: Features built-in function for automatic compensation of air pressure to ensure accurate display readings.

RS485 MODBUS RTU Interface: Equipped with two-wire RS485 interface supporting MODBUS RTU protocol for digital communication.

Large Graphic LCD Display: Features a 3.2-inch 128*64 dot matrix LCD screen for clear data visualization.

Comprehensive Data Logging: Records 10,000 historical data points and maintains the last 100 maintenance records.

IP66 Protection Grade: Enhanced ABS enclosure with IP66 rating ensures durability in harsh industrial environments.

Power Failure Protection: Parameters are permanently retained even when power is off, ensuring data safety.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Suzhou Delfino Environmental Technology Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 9 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤9.45h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad technical and service capabilities in pH meter production, including 3D design, multiple customization models, ODM/OEM services, SDK availability, and recent product development. Quality-related procedures are documented and followed, with stated quality assurance, inspection instructions, and two inspectors. Production information indicates two production lines and an annual output of 1,000,000 pH meter pieces, with lead times within 15 working days in both peak and off-peak periods. However, the supplier lacks an effective manufacturing-capacity contract with affiliated subcontractors, overseas warehouses, overseas showrooms, agents or branches, and has no overseas service coverage according to the stated country count. R&D audit documentation is also unavailable. No certification evidence, financial credibility evidence, or specific customer case details are provided.

Supplier typeThe supplier operates an assembling line and two production lines, produces pH meters, and serves industrial, laboratory, environmental, municipal water-treatment, and portable-instrument applications. Its stated markets include domestic sales and East Asia, particularly Japan and South Korea, indicating a manufacturer-oriented supplier with sector-specific instrumentation capabilities.

R&D capabilityThe supplier reports new products during the past year, a professional R&D team, more than 20 patents including invention patents, ODM capability, SDK availability, and software tools including AutoCAD, Pro/E, and SolidWorks. However, no R&D design input, output, review, verification, or validation documents are available for audit, so the innovation capability is supported operationally but has a documentation gap.

Production capacityThe supplier reports two production lines, annual pH meter output of 1,000,000 pieces, in-stock capability, and lead times within 15 working days in both peak and off-peak seasons. Quality inspection instructions are uniformly followed, but the supplier has no valid manufacturing-capacity contract with affiliated subcontractors, which creates a documented capacity-management weakness.

Customization capabilityThe supplier provides 3D software design and supports customization from samples, designs, full customization, minor customization, and flexible customization. It also offers ODM and OEM services and uses AutoCAD, Pro/E, and SolidWorks, providing explicit evidence of broad customization support.