What is the warranty period?

We provide a 1-year warranty and after-sales service.

What materials are used for the probe body and sensor head?

The body is made of PPS, and the sensor head is made of 316L Stainless Steel.

Patented Technology 0/4~20mA Optical Digital Dissolved Oxygen Probe for Drinking Water Treatment

Name: Patented Technology 0/4~20mA Optical Digital Dissolved Oxygen Probe for Drinking Water Treatment
Brand: Suzhou Delfino Environmental Technology Co., Ltd.
SKU: 2169421815

Jiangsu, ChinaSuzhou Delfino Environmental Technology Co., Ltd.

Negotiable

1 Piece

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

OPD790

Transport Package

Packing

Specification

Diameter: 35mm Length: 250mm

Trademark

Daruifuno

Origin

China

HS Code

9026809000

Production Capacity

5000pieces/Year

Key features

Patented Fluorescence Tech: Advanced digital optical measurement for high accuracy and stability.

IP68 Waterproof Design: Durable PPS body and 316L SS sensor head for continuous underwater use.

RS485 Modbus Protocol: Easy integration with online transmitters, DTUs, and industrial control systems.

Fast Response Time: T90 less than 25 seconds for 0-100% and 30 seconds for 100-0%.

Customizable Cable Length: Standard 5 meters cable with options for other lengths to fit needs.

Wide Application Range: Suitable for surface water, sewage, wastewater, and industrial processes.

1-Year Warranty: Comprehensive 1-year warranty and after-sales service support.

Compact & Lightweight: Small dimensions (35mm x 250mm) and light weight (260g) for easy installation.

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: ≤9.38h

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.