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: ≤9.49h

AI-Powered supplier vetting

SummaryThe supplier demonstrates established product development and customization capabilities, including 3D design, multiple customization models, ODM/OEM services, SDK availability, and software proficiency in AutoCAD, Pro/E, and SolidWorks. Quality processes include documented inspection, complaint handling, corrective and preventive action procedures, and stated quality assurance. Production evidence includes two production lines, one million pH meter units annually, two quality inspectors, and lead times within 15 workdays in both peak and off-peak periods. Service coverage is comparatively limited: no overseas warehouse, showroom, agents, branches, or overseas service countries are reported, and there is no valid manufacturing-capacity contract with related subcontractors. R&D documentation available for audit is also lacking. Certification, financial credibility, and customer-case evidence are insufficiently documented in the provided information.

Supplier typeThe supplier operates an assembling line and two production lines, produces pH meters, and serves industrial process control, municipal water testing, environmental monitoring, laboratory, and portable instrument applications. The information supports classification as a manufacturer and assembler of measuring instruments, although no formal supplier-type designation is stated.

After-Sales capabilityThe supplier has documented procedures and records for corrective and preventive actions, customer complaints, supplier-service assessment, and finished-product inspection. However, it reports no overseas warehouse, showroom, agents, branches, or overseas service countries, indicating documented service processes but limited overseas service infrastructure.

R&D capabilityThe supplier reports new products during the past year, a professional R&D team, continuous innovation, more than 20 patents, ODM capability, SDK availability, and engineering proficiency in AutoCAD, Pro/E, and SolidWorks. Nevertheless, no design-input, output, review, verification, or validation documents were available for auditor review.

Production capacityProduction evidence includes two production lines, annual pH meter output of 1,000,000 pieces, in-stock capability, two quality assurance/QC inspectors, standardized finished-product inspection instructions, and lead times within 15 workdays in peak and off-peak seasons. A deficiency is that no valid manufacturing-capacity contract exists between the factory and related subcontractors.

Customization capabilityThe supplier explicitly provides 3D software design, customization from samples and designs, full, minor, and flexible customization, as well as ODM and OEM services. These repeated capabilities across design and R&D records provide clear evidence of broad customization support.