KZDO-210 Optical Dissolved Oxygen Sensor
KZDO-210 optical DO sensor supports salinity, pressure and temperature compensation.
It adopts non-consumable structure and reserves RS485 output port.
Suitable for monitoring in surface water, aquaculture and wastewater scenarios.
1. Core Advantages:
• Digital Output - Sensor communicates with controller unit on a very reliable RS 485 digital level.
It gives out digital signals to the controller unit directly via RS-485 interface.
• Multi-Parameter Compensation
The module is equipped with temperature and pressure sensor components.
During the use, it automatically completes salinity compensation.
• Non-Consumable Design
Operating based on the optical measuring principle, the sensor is of a non-consuming type.
There is no need for electrolyte, and the device does not use up oxygen in the measuring process.
• Stable & Anti‑Interference
The optical filters inside the sensor head prevent the external light from entering the sensor, so interference to the measuring process is avoided.
Sensor provides a stable reading continuously thanks to its anti-interference design feature.
• Corrosion‑-resistant & Durable
The outer surface of the device is 316L grade SS which has excellent corrosion resistance.
Entire unit is very power efficient even though it's stainless steel.
2. Technical Specifications:
Measuring Range | 0–200mS/cm (customizable up to 500mS/cm) |
Measuring Temperature | 0–20mg/L (high-temp perater) |
Operating Conditions | 0–45℃, 0.1MPa |
Dimensions | Diameter 30.5mm × 185.5mm, Protection Length 185.5mm |
Response Time | 0 seconds (T90) |
Protection Class | Display unit IP66, probe IP68 |
Ambient Temperature | Display unit 20℃, Probe 20–50℃ |
Communication | RS-485 digital signals, MODBUS/RTU protocol |
3. Digital Optical Technology for High Precision:
It applies mature digital detection technology.
It achieves lab-level measuring accuracy without chemical reagents.
It supports real-time on-site monitoring and covers wide measuring range.
Built-in compensation function offsets temperature, turbidity and background interference.
It maintains stable and drift-free data output under complex industrial water conditions.

4. Factory Quickview:
Established in 2009
Factory area: 15,000 m²
R&D personnel: 50+
Industry experience: 20+ years
Production lines: 4+
Annual output: 100 units per month
Export coverage: Asia, Europe, Middle East, North America & South America

5. Global Market Overview
Kangzhuo Tech supplies industrial control cabinets, water quality analyzers and various sensors.
It also provides integrated automation solutions for global markets.
Business covers Southeast Asia, Central Asia, Russia, Eastern Europe, Northern Europe, South America, North America and the Middle East.
The company focuses on high-performance customized products for different scenarios.
Explosion-proof control cabinets adapt to extreme high and low temperature environments.
These products meet strict standard requirements from professional industrial fields worldwide.

6. Project Cases Introduction
With 20 years of manufacturing experience in automation control cabinets and system solutions.
The company provides customized automation systems for wastewater plants, water supply plants, pump stations and water conservancy projects.
Our control cabinets and system integration services have been used in many engineering projects.
We gain consistent recognition and long-term trust from global clients.

7. Global Exhibitions:
We take part in major global industry exhibitions regularly.
We showcase Optical Dissolved Oxygen Sensor, DO Sensor Optical, Dissolved Oxygen Probe, Optical Oxygen Sensor and Industrial DO Sensor series.
We also display matched automation solution products on site.

8. After-Sales Service for Industrial Automation Solutions
Lifetime technical support
Rapid response and on-site service arrangement
Long-term spare parts supply and replacement service
Regular system maintenance and function upgrade
Professional operator training and technical guidance
Complete warranty and quality guarantee policy
Remote debugging and online troubleshooting
Customized after-sales plan for different project needs


