ProbeOxygen Optical digital sensor OPTOD for ODEON



◼ Optical Technology without calibration
◼ Digital Technology (Modbus RS-485)
◼ No drift, Reduced maintenance
◼ Body in Stainless steel (316 L) or Titanium

Applications :
◼ Urban wastewater treatment
◼ Industrial effluent treatment
◼ Surface water monitoring,
◼ Sea water monitoring, fish farming, aquarium
◼ Drinking water

  • Description
  • Additional information


  • Technical Data
  • Downloads

Optical technology :
The OPTOD (Optical Dissolved Oxygen technology) is based on luminescent optical technology. The OPTOD sensor is approved by the ASTM International Method D888-05.
Without calibration requirements and thanks to an ultra low power technology, the OPTOD sensor meets the demands of field works and short or long term campaigns.
Without oxygen consumption, this technology allows you an accurate measure in all situation and especially in very low oxygen concentrations.

Digital Technology :
The “smart” OPTOD sensor stores calibration and history data within the sensor. This allows you a “plug and play” system without re-calibration.
Thanks to the Universal Modbus RS485 protocol, the PONSEL OPTOD can be connected to all devices commonly used (Datalogger, Controller, Automat, Remote System…).

Mécanique :
Compact, strong and light, the sensor allows a portable or in fixed/permanent use.
Body in Stainless steel 316 L (passivation treatment) or in Titanium for applications in corrosive environment.

Ponsel OPTOD specifications :
Measure principle Optical measure by luminescence

Measure ranges

0,00 to 20,00 mg/L
0,00 to 20,00 ppm
Resolution 0,01


+/- 0,1mg/L
+/- 0,1 ppm
+/- 1 %
Response time 90% of the value in less than 60 seconds
Frequency of recommended measure >5 s
Water move No necessary move
Temperature compensation Via NTC
Stocking temperature – 10°C to + 60°C
Signal interface Modbus RS-485 (standard) and SDI-12 (option)
Sensor power-supply 5 to 12 volts


Standby 25 µA
Average RS485 (1 measure/ seconde) : 4,4 mA Average SDI12 (1 measure/ seconde) : 7,3 mA Current pulse : 100 mA
Dimensions Diameter : 25 mm ; length : 146 mm
Weight Stainless steel version 450g (sensor + cable 3 m) Titanium version 300 g (sensor + cable 3 m)
Material Stainless steel 316L, New : body in Titanium
Maximum pressure 5 bars
Connection 9 armoured connectors, polyurethane jacket, bare- wires or waterproof Fisher connector
Protection IP68

Additional information

Cable Length

3m, 7m, 15m