Dissolved Oxygen Sensor NOS-100

Dissolved Oxygen Sensor NOS-100

Dissolved Oxygen Sensor NOS-100 is a compact, hand-held sensor that help in easy and accurate dissolved oxygen measurement. Designed with economical but durable stainless-steel probe, these sensors are suitable for portable as well benchtop use. Equipped with automatic as well as manual mode, it is the ultimate water quality field instrument for sampling and profiling of water samples. This sensor is widely applied in many water quality applications, such as aquaculture, environment monitoring, natural sciences.


Dissolved Oxygen Range 0~20 mg/L or 0~200 %
Dissolved Oxygen Sensor Optical DO sensor
Dissolved Oxygen Accuracy 0.01
Dissolved Oxygen Sensor Drift <1 % per year
Sensor Material SS316 / Titanium alloy
Temperature Range 0 °C ~ 40 ℃
Temperature Accuracy ± 0.2 °C
Measuring Distance 3 meters ~5 meters
Working Temperature -20 ℃ ~ 50 ℃
Power Supply 3V ~ 6V
Power Consumption < 0.5 Watts
Signal Output RS-485
Battery Requirement 9 V


  • 18.8cm stainless steel probe
  • Manual and automatic mode
  • Interchangeable temperature settings
  • Quick and accurate results


Designed for biochemical oxygen demand (BOD) tests, spot sampling or long-term monitoring applications, especially in aquaculture and water treatment plants.

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