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UV254 Professional Chemical Oxygen Demand Sensor ,12VDC Bod Cod Meter

Basic Information
Place of Origin: China
Brand Name: Desun Uniwill
Model Number: DS-500
Minimum Order Quantity: 0~100 pcs
Price: $1000.00 - $3000.00/ 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: DS502(1mm Gap) COD Range: 2.5 To 1000 Mg / L
BOD Range: 0~500 Mg / L Power Supply: 12VDC +/-5%
Output Signal: RS485 / Modbus Accuracy: 0.01mg/L COD
Calibration: 1 Or 2 Point Calibration Self-cleaning Brush: COD Range Over 2000, No Self-cleaning Brush
Housing Material: SS316L
High Light:

UV254 Chemical Oxygen Demand Sensor


12VDC Chemical Oxygen Demand Sensor


Bod Cod Meter

Product Description

COD Spectrometer COD/UV254 Professional Online COD Bod Analyzer Water COD Meter


UV254 sensor


Light path: 1mm/ 6mm

COD 2.5 to 1000 mg/l equiv. KHP 

BOD 0~500mg/L TSS 0~1000mg/L

+5~45 °C;

IP68 protection level,

RS-485; MODBUS protocol

compatible 1 or 2 point user calibration

UV LED light source


Technical parameter


Item Parameters
Model Measuring range Application field



DS501(6 mm gap)

COD 0.75 to 1000 mg/l equiv. KHP

TSS 0 to 1000 mg/L

BOD 0~300 mg / L




Tap water,Sewage treatment plant outlet, natural waters



DS502(1mm gap)

COD 2.5 to 2000 mg/l equiv. KHP

TSS 0 to 1000 mg/L

BOD 0~500 mg / L




Industrial process control,Raw water

Power supply 12VDC +/-5%
Output signal RS485 / Modbus
Accuracy 0.01mg/L COD
Calibration 1 or 2 point calibration



















Calibration (2-point calibration)

  • Restore user calibration data to default, K=1, B=0 (see modbus documentationfor details).
  • Place the sensor in pure water (distilled or deionized water) and verify that all light paths are submerged under water >2 cm without bubbles.

Note: Do not use tap water. The COD value is then read, for example COD = 0.2 mg/L, recorded as X.

  • Place the sensor in a 150mg/L COD solution and repeat step 3.2 to record the value as Y.
  • Record the K and B values as follows:
  • K=150/(YX), B= - KX
  • Write the K, B values to the sensor.

WARNING: KHP is a cancer risk and should be worn with gloves.


UV254 Professional Chemical Oxygen Demand Sensor ,12VDC Bod Cod Meter 0


Contact Details

Phone Number : +86 181 8242 9986

WhatsApp : +8618182429986