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RS485 Dissolved Oxygen Sensor Probe 4 - 20mA DO Sensor For Aquarium

Basic Information
Place of Origin: China
Brand Name: Desun Uniwill
Certification: CE
Model Number: DS-380
Minimum Order Quantity: 0~100 pcs
Price: $280.00 - $400.00/ Piece
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: DS380 Principle: Fluorescence Analysis Method
Measuring Range: 0~20mg/L Response Time: 3 Seconds
Accuracy: 1% Protection Level: IP68
Installation: Submersible Temperature Sensor: NTC
Temperature Range: 0~50°C Temperature Accuracy: ±0.2°C
Output: Support RS-485, MODBUS Protocol Power Supply: DC 6~12V, Current <50mA
Size: Φ26*155 Mm Probe Cable Length: Default 5 M
Fluorescent Cap Life: 1 Year Maximum Working Pressure: 3bar
Housing Material: SS316/Titanium Alloy
High Light:

Aquarium Dissolved Oxygen Probe


RS485 Dissolved Oxygen Sensor Probe


Fluorescence Analysis DO Sensor

Product Description

Dissolved oxygen sensor RS485 dissolved oxygen probe 4-20mA DO sensor for aquarium


For aquaculture, if dissolved oxygen levels are too low, fish can suffocate and die as a result. In wastewater treatment plants, bacteria break down solids. If DO levels are too low, bacteria die and decomposition stops; if dissolved oxygen levels are too high, then energy is wasted through aeration of the water. In industrial applications, including boilers, supplemental water must have low DO levels to avoid corrosion and boiler fouling. Monitoring dissolved oxygen levels is critical to ensure process efficiency, as boiler fouling inhibits heat transfer. High dissolved oxygen levels in water can improve the taste of drinking water. However, high dissolved oxygen levels can increase corrosion in water pipes and transport lines.


Advantages of optical dissolved oxygen measurement

• Easy use, no membrane, no electrolyte.
• Long lifetime, maintenance free and less calibration.
• No flow dependency and fast response.
• Immune to electrical interference, no chemical interference.


Technical Specifications


Item Parameters
Model DS380
Principle Fluorescence analysis method
Measuring range 0~20mg/L or 0-200% saturation
Response time 3 sec
Accuracy 1%
Protection level IP68
Installation Submersible
Temperature sensor NTC
Temperature range 0~50°C
Temperature accuracy ±0.2°C
Output Support RS-485, MODBUS protocol
Power supply DC 6~12V, current <50mA
Size Φ26*155 mm
Probe cable length Default 5 m, customized 10m, 15 m and 30 m cable
Fluorescent cap life 1 year
Maximum working pressure 3bar
Housing material SS316/Titanium alloy


























1) Avoid exposing the inner surface of the fluorescent cap to sunlight.

2) Do not touch the fluorescent film with your hands.

3) Avoid any direct application of mechanical stress (pressure, scratches, etc.) to the fluorescent film during use.



Cable information


4 wire AWG-24 or AWG-26 shielding wire. OD=5mm



RS485 Dissolved Oxygen Sensor Probe 4 - 20mA DO Sensor For Aquarium 0

  • Red line----power supply (VCC)
  • White line---- 485 data -B (485-B)
  • Yellow line---- 485 data -A (485-A)
  • Black line----ground (GND)
  • Bare line---- shielding layer

Desun Uniwill company

Contact Details

Phone Number : +86 181 8242 9986

WhatsApp : +8618182429986