High-Precision Industrial & Laboratory COD Analyzers (Chemical Oxygen Demand)

As a leading B2B water testing equipment manufacturer, Hangzhou Qiwei Instrument Co., Ltd. supplies advanced COD Analyzers, rapid digestion reactors, and photometers engineered for fast, accurate organic pollution measurement in industrial wastewater, municipal effluents, and environmental laboratories.

Designed in compliance with ISO/EPA standard spectrophotometric digestion methods, our COD meters deliver rapid heating, high-precision optical measurement, and stable repeatability—ideal for environmental compliance and process control.

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Portable COD Meter
Model: QW-COD-B
Ambient Temperature: 5 - 40℃
Relative Humidity: < 85% (no condensation)
Power Supply: AC 220V±10% / 50Hz
Benchtop COD Analyzer
Model: QW-COD-T
Ambient Temperature: 5 - 40℃
Relative Humidity: < 85% (no condensation)
Power Supply: AC 220V±10% / 50Hz

Our COD Testing Equipment Series

From portable field meters to multi-sample benchtop digestion systems, we offer full-spectrum solutions for B2B buyers and lab equipment distributors.

1. Laboratory Benchtop COD Analyzers

High-accuracy photometric COD meters featuring pre-calibrated curves, automatic optical selection, direct concentration display, and USB data export for laboratory compliance audit trails.

Direct reading in mg/L COD
Multi-wavelength optical system
Built-in printer & USB export interface

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2. Smart COD Digestion Reactors (12/16/25 Vials)

Essential sample preparation units providing rapid heating up to 165°C with precise PID temperature control, transparent protective shields, and digital countdown timers for batch testing.

Rapid 15-minute standard digestion
Over-temperature alarm safety shield
Multi-parameter digestion presets (COD, TP, TN)

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3. Portable COD & Multi-Parameter Meters

Rugged, battery-powered field testing kits integrating COD, Ammonia Nitrogen, Total Phosphorus, and Turbidity testing in a heavy-duty portable carrying case for on-site monitoring.

IP65 field-ready enclosure with battery pack
Integrated COD / Ammonia / Phosphorus testing
Ideal for environmental protection agencies

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Key Technical Advantages & Industrial Applications

Industrial Wastewater & Effluent Control

Chemical oxygen demand (COD) is the critical indicator of organic pollution levels in industrial discharge. Qiwei COD analyzers are widely adopted in:

Textile dyeing & printing effluent monitoring
Chemical manufacturing & pharmaceutical wastewater
Food & beverage processing plant discharge treatment
Municipal sewage treatment plant process optimization

Precision Engineering & OEM Advantages

Designed for global OEMs, laboratory suppliers, and environmental project contractors:

Sealed Tube Digestion: Reduces chemical reagent hazard and environmental risk
Pre-calibrated Curves: Plug-and-play operation without frequent manual curve building
OEM & ODM Customization: Custom branding, language interface, and housing color schemes
Internal Links: Pair with our Water Quality Test Equipment and Electrochemical Instruments for complete lab setup.

Frequently Asked Questions (B2B Sourcing Guide)

Q1: What is the digestion method used in Qiwei COD Analyzers?

Our COD meters utilize the standard sealed catalytic digestion spectrophotometric method (150°C - 165°C digestion for 15 minutes), ensuring strict adherence to EPA and ISO international analytical guidelines.

Q2: Do you provide COD digestion pre-dosed reagent vials?

Yes, we supply ready-to-use pre-dosed COD digestion reagent vials covering low range (0–150 mg/L) and high range (100–15,000 mg/L) testing to minimize manual chemical handling.

Q3: What is the lead time for bulk COD analyzer OEM orders?

Standard catalog models can be shipped within 3–7 business days. Custom OEM/ODM orders with customized software or logo branding typically ship within 2–3 weeks.

Require Custom COD Testing Solutions or Factory Direct Price Lists?

Partner directly with Hangzhou Qiwei Instrument for high-performance COD analyzers, competitive wholesale margins, and reliable technical backing. Submit your requirement today.

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Hangzhou Qiwei Instrument Co., Ltd. is one of the most reliable manufacturers and suppliers of cod analyzer in China, featured by quality products and good service. Please rest assured to buy bulk durable cod analyzer in stock here from our factory. We also accept customized orders.

cod analyzer, Portable COD Meter