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: ≤8.21h

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.