Send Message

Optical Water Dissolved Oxygen Meter RS485 Dissolved Oxygen Measuring Instrument

Basic Information
Place of Origin: China
Brand Name: Desun Uniwill
Certification: CE
Model Number: DYS-1
Minimum Order Quantity: 0~100 pcs
Price: $ 425.00 - $ 535.00/ Set
Packaging Details: Carton packaging
Delivery Time: 7~ 15 working days
Payment Terms: L/C, D/A, D/P, T/T
Supply Ability: 0~1000 pcs
Detail Information
Model: DYS-1 D.O. Range: 0~20mg/L Or 0~200%
DO Sensor: Optical DO Sensor D.O. Accuracy: 1%
Dissolved Oxygen Sensor Drift: <1%per Year Sensor Material: Stainless Steel/Titanium
Temp. Range: 0~40℃ Temp. Accuracy: ±0.2℃
Working Temperature: -20℃~50℃ Material Supplied: 3v~6v
Power: <0.5w Signal Output: RS-485
High Light:

Titanium Dissolved Oxygen Measuring Instrument


Optical Water Dissolved Oxygen Meter


RS485 Optical Dissolved Oxygen Meter

Product Description

Instrument to measure dissolved oxygen in water Dissolved oxygen measuring instrument


There are several types of instruments used for measuring dissolved oxygen (DO) in various applications. Here are some commonly used instruments:


Optical DO Probes: Optical dissolved oxygen probes use luminescence-based technology to measure DO. These probes typically contain a fluorescent or phosphorescent dye that reacts with oxygen. The intensity of the emitted light is inversely proportional to the dissolved oxygen concentration, allowing for measurement.


Membrane Electrode DO Meters: Membrane electrode DO meters employ a membrane-covered electrode that interacts with the dissolved oxygen in the sample. The oxygen diffuses through the membrane, generating a potential difference or current that is measured to determine the DO concentration.


Portable DO Meters: Portable DO meters combine a handheld device with a sensor or probe for on-site measurements. These meters often feature digital displays, user-friendly interfaces, temperature compensation, and calibration capabilities. They may use one of the above-mentioned measurement principles.


Online DO Sensors: Online DO sensors are designed for continuous monitoring of dissolved oxygen in industrial processes, wastewater treatment plants, and aquaculture systems. These sensors are installed directly in the system, allowing real-time monitoring and control.


When selecting a dissolved oxygen measuring instrument, consider factors such as measurement range, accuracy, response time, calibration requirements, maintenance, and the specific needs of your application. It is also important to follow the manufacturer's instructions for proper operation, calibration, and maintenance to obtain reliable and accurate measurements.


Product Description

The handheld device can be used for monitoring of dissolved oxygen, temperature and PH in water, and can meet the requirements of portable accurate water quality measurement.

Dissolved Oxygen Meter For Water Test

Signal output: RS-485
The screen uses a custom backlight, which can display dissolved oxygen, temperature, PH, and a real-time clock.

Manual calibration of salinity, air pressure, and KB value to ensure accurate measurement value.


* 0-20mg/L or 0-200% saturation
* 0~50 °C; IP68 protection level
* No film, no electrolyte, no polarization
* No need to consume oxygen, no flow rate
* Built-in temperature sensor, automatic temperature compensation
* Free from chemical interferences such as sulfides
* Small annual drift, fast response, and more accurate measurement
* Free of maintenance, longer application cycle and lower cost of use
* Fluor cap replacement is simple
*Support RS-485, MODBUS protocol
Technical parameters
Fluorescent dissolved oxygen sensor
Measuring Range
0-20mg/L or 0 ≤ 200% saturation
Response time
± 1%
Sensor drift
<1% per year
Temperature range
Temperature precision
± 0.5℃
Calibration method
One or Two-point calibration
output method
RS-485 (Modbus/ RTU )
Temperature sensor
Housing diameter
Housing length
Cable length
10 m, in addition to the customer, 5 m, 15 m and 30 m cables.
Power consumption
< 0.5 W
power supply
DC6~12v +/-5%, current<50mA
Protection level
Housing Material

Online Fluorescence Dissolved Oxygen Meter

Fluorescence Dissolved Oxygen Sensor in Aquaculture-Desun Uniwill


Contact Details

Phone Number : +86 181 8242 9986

WhatsApp : +8618182429986