What communication protocol does it support?

It features an RS485 digital interface with a standard Modbus communication protocol, supporting access to standard industrial control systems.

What is the warranty period?

We provide a 1-year warranty and lifetime free technical support.

Is the sensor portable?

No, this sensor is non-portable and is designed for online transmitters, DTU, and portable instruments integration.

RS485 Digital Do Probe Dissolved Oxygen Sensor for PLC System

Name: RS485 Digital Do Probe Dissolved Oxygen Sensor for PLC System
Brand: Suzhou Delfino Environmental Technology Co., Ltd.
SKU: 2018829385

Jiangsu, ChinaSuzhou Delfino Environmental Technology Co., Ltd.

US$498.00-534.00

1 Piece

Sample price:US$498.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

1 Year Lifetime Free Technical Support

Warranty

1 Year Lifetime Free Technical Support

Model NO.

OPD79

Display

Digital

Appliance

Food Analysis, Medical Research, Biochemistry, Industrial Water Treatment

Portable

Non Portable

Certification

CE, ISO9001, SGS

Material

ABS/PPS

Protection Level

IP68

Work Pressure

0~3bar

Measuring Range

Oxygen Content: 0.00~20.00 Mg/L

Resolution

0.01mg/L 1%

Accuracy

0.1 Mg/L 1%

Installation Size

1"NPT at Both Ends

Weight

170g

Measure Principle

Fluorescence Principle

Transport Package

Packaging

Specification

Diameter: 35mm, total length: 195mm

Trademark

drfn

Origin

China

HS Code

9026809000

Production Capacity

50000 Pieces/Year

Key features

Zero Calibration Required: No calibration needed, suitable for field work and long-term operations without consuming oxygen.

RS485 Digital Interface: Standard Modbus protocol supports direct connection to industrial control systems and PLCs.

IP68 Waterproof Design: High protection grade ensures durability in harsh environments like industrial water treatment.

Fast Response Time: Achieves 90% of the value in less than 60 seconds for efficient monitoring.

Lifetime Technical Support: Provides 1-year warranty and lifetime free technical support for all customers.

Plug and Play Installation: Easy setup with internal calibration data storage and 1 NPT installation size.

High Accuracy & Resolution: Resolution of 0.01mg/L and accuracy of 0.1mg/L ensure precise measurements.

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: ≤6.66h

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.

Product Q&A

Q:Is your company a manufacturer?

Our company is a professional manufacturer of water analysis instruments and sensors, integrating development and production together. The quality of our products is guaranteed strictly.

Q:What's the location of your company?

Our company is Located in Suzhou near Shanghai,So we enjoy convenient water, land and air transportation,which is very efficient and fast.

Q:How is your service?

We will try our best to offer you good before-sale and after-sale service. We hope to cooperate with more customers for mutual development and benefits. We welcome potential buyers to contact us.

Q:What is the measuring range of the sensor?

The measuring range is Oxygen content: 0.00~20.00 mg/L and saturation: 0~200%.

Q:Does the sensor require calibration?

No need to be calibrated and can meet the requirements of field work. It supports offline calibration with internal storage of calibration data.