Send Message

RS485 NO3 Nitrate Water Sensor Self Cleaning Water Testing Probe

Basic Information
Place of Origin: China
Brand Name: Desun Uniwill
Model Number: DSN360
Minimum Order Quantity: 0-100pcs
Price: According to the specific quantity
Packaging Details: carton packaging
Delivery Time: 7-15 working days
Payment Terms: L/C, D/A, D/P, T/T
Detail Information
Product Name: Online Nitrate Sensor Principle: Ion Selective Eectrode Method
Nitrate Range: 0~800mg/l NO3- Nitrate Resolution: 0.1 Mg/L
Nitrate Accuracy: 5% FS PH Accuracy: ±0.1
PH Range: 4-10 Power Supply: 5~12vdc
Housing Material: POM Output Signal: RS485
High Light:

RS485 Nitrate Water Sensor


NO3 Nitrate Water Sensor


Self Cleaning Water Testing Probe

Product Description

RS485 NO3-Nitrate sensor for wastewater monitoring, sewage treatment and aquaculture POM


Our online nitrate sensor doesn't require reagents, is green and non-polluting and can be monitoring online in real time. The integrated ammonium ion, nitrate ion (optional), pH and reference electrodes automatically compensate for nitrate ion (optional), pH and temperature in the water. Available for direct installation, more economical, environmentally friendly and convenient than conventional ammonia nitrogen analysers. The probe is equipped with a self-cleaning brush to keep microorganisms away, giving longer maintenance periods and excellent reliability. Uses RS485 output and supported Modbus for easy integration.


  • Digital sensor, RS-485 output, supports MODBUS
  • No reagents, no pollution, more economical and environmentally friendly
  • Automatically compensate pH and temperature in water
  • With self-cleaning brush to prevent microbial attachment and longer maintenance intervals


Item Parameters
Model DSN260
Ammonia Nitrogen Range 0~1000mg/l
Ammonia Nitrogen Precision 3%
Ammonia Nitrogen Resolution 0.1mg/l
Nitrate Range 0~50mg/L
Nitrate Precision 5%
Nitrate Resolution 0.1mg/l
pH range 1~12
pH Accuracy ±0.1
pH Resolution 0.01
Deepest depth Underwater 10m
Protection level IP68
Temperature range 0~50
Sensor interface Support RS-485, MODBUS protocol
assembly Input type
Power information DC 5~12V, current <50mA
Probe cable length 10 meters (default), can be customized
Housing material POM



Maintenance method

Sensor maintenance

1) External surface of the sensor: Wash the external surface of the sensor with tap water. If debris remains, wipe it with a moist soft cloth.

2) Check the cable of the sensor: The cable should not be tight during normal work, otherwise the internal wires of the cable will be easily broken and the sensor will not work properly.

3) Sensor storage: When the sensor is not in use, you should fasten the black plastic cap and check whether the sponge inside is wet. If it is not wet enough, please add 3mol / L potassium chloride solution and let the electrode be stored in the solution with potassium chloride.


Cable definition

Probe size

26x167.5 mm(Φ xL)

Power information

Power supply must be DC 5-12v + / - 5%, current < 50mA

Cable information

4 wire awg-24 or awg-26 shielding wire. Od = 5mm

RS485 NO3 Nitrate Water Sensor Self Cleaning Water Testing Probe 0

About Us
Xi'an Desun Uniwill Electronic Technology Co., Ltd (Hereinafter referred to as Disen
Sensing Company) is located in Xi'an High-tech Development Zone. It is a high-tech
company integrating production, R&D, sales and engineering services. Relying on
Xi'an's rich high-tech resources, we have carried out technical cooperation with many
universities and scientific research institutions, constantly breaking through technical
barriers, improving product performance, and using leading technology to provide
high-quality products for the water quality monitoring industry.
We launched a wireless water quality monitoring solution based on the current rapid
development of the Internet of Things technology, combining smart terminals and
traditional display units through wireless transmission to achieve real-time dynamic
water quality monitoring functions such as data cloud display, remote cloud control,
and upper and lower limit alarms.

Contact Details

Phone Number : +86 181 8242 9986

WhatsApp : +8618182429986