SUP-DO7012 Optical dissolved oxygen sensor

SUP-DO7012 Optical type dissolved oxygen sensor, an intelligent online chemical analyzer. The cap of the sensor is coated with a luminescent material. Blue light from an LED illuminates the luminescent chemical. The luminescent chemical instantly becomes excited and releases red light. The time and intensity of red light are inversely proportional to the concentration of oxygen molecules, So the concentration of oxygen molecules is calculated.


Range: 0-20mg/L,0-20ppm,0-45deg C

Resolution: ±3%, Temperature: ±0.5℃

Pressure range: ≤0.3Mpa

Power supply: 12 VDC

SUP-DO7012 Optical dissolved oxygen sensor
  • Specification

  Product  Dissolved oxygen sensor
  Model SUP-DO7012
  Measure range 0-20mg/L,0-20ppm,0-45deg C
  Accuracy Resolution:±3%, Temperature: ±0.5℃
  Pressure range ≤0.3Mpa
  Power supply 12 VDC (9~28)VDC
  Main material SUS316L+PVC (Ordinary Version), 
Titanium Alloy (Seawater Version)
O-ring:PPS+glass fiber; Cable: PUR
  Cable length Standard 10-Meter Cable, Max : 100m
  Display 128 * 64 dot matrix LCD with LED backlight
  Power supply 12 VDC
  Calibration Automatic air calibration,Sample calibration
  Storage Temperature -15~60℃
 Operation temperature 0~45℃
 Weight 1.4kg
 Ingress protection IP68/NEMA6P
  • Introduction

SUP-DO7012 Dissolved oxygen sensor


  • Communication Protocol

Baud Rate 4800/9600/19200/38400/57600
Data Bits 8 bit
Parity Check no
Stop Bit 1bit


Register Name Address Location Data Type Length Read/Write Description
Dissolved Oxygen Value 0 F(Float) 2 R(only read)  
Dissolved Oxygen Concentration 2 F 2 R  
Temperature 4 F 2 R  
Slope 6 F 2 W/R Range:0.5-1.5
Deviation Value 8 F 2 W/R Range:-20-20
Salinity 10 F 2 W/R  
Atmospheric Pressure 12 F 2 W/R  
Baud Rate 16 F 2 R  
Slave Address 18 F 2 R Range: 1-254
Response Time of Read 20 F 2 R  
Modift Baud Rate 16 Signed 1 W  
Modify Slave Address 17 Signed 1 W Range: 1-254
Modify Response Time 30 Signed 1 W 6-60s