What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 PC.

What is the average lead time for production?

The average lead time is within 15 workdays for both peak season and off-season.

What are the payment terms accepted?

Accepted payment terms include LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

Own Brand RS485 0/4~20mA Ammonia Nitrogen Controller for Water Quality

Name: Own Brand RS485 0/4~20mA Ammonia Nitrogen Controller for Water Quality
Brand: Suzhou Delfino Environmental Technology Co., Ltd.
SKU: 2168464315

Jiangsu, ChinaSuzhou Delfino Environmental Technology Co., Ltd.

Negotiable

1 Piece

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

DUC2-NH4-A

Transport Package

Packing

Specification

144*144*120 mm (hole size 138*138 mm)

Trademark

Daruifuno

Origin

China

HS Code

9026809000

Production Capacity

5000pieces/Year

Key features

Universal Sensor Compatibility: Specially designed for Daruifuno digital NH4-N sensors with single channel input.

Extensive Data Recording: Stores up to 10,000 historical data points with power-off protection for indefinite retention.

Flexible Output Options: Features two settable 0/4~20mA current outputs and RS485 MODBUS RTU digital interface.

Customization Support: Supports full customization, minor customization, and customization from samples or designs.

Robust Industrial Design: IP66 protection grade with enhanced ABS enclosure for reliable operation in harsh environments.

Versatile Installation: Supports wall mounting, pipe clamping, and panel installation with adjustable display settings.

Comprehensive Alarm Control: Includes two settable SPST relays for high/low alarms, temperature control, and wash functions.

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: ≤7.06h

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:What is the warranty period for this controller?

The product comes with a 1-year warranty and after-sales service.

Q:What types of sensors are compatible with this controller?

It is a universal controller specially designed for Daruifuno digital NH4-N sensors with single channel input.

Q:How much historical data can the device store?

The controller can record up to 10,000 historical data points, and parameters are retained indefinitely even after power off.

Q:What communication interfaces does the controller support?

It supports two settable 0/4~20mA current outputs and a 2-wire RS485 interface with MODBUS RTU protocol.

Q:Is customization available for this product?

Yes, OEM and ODM services are available. Customization options include full customization, minor customization, and customization from samples or designs.