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AlpHa Measurement Solutions |
Oxidation-Reduction Potential (ORP) in Aquaculture, Agriculture, & Hydroponics

ORP in Aquaculture, Agriculture, & Hydroponics

To ensure the health of aquaculture and agriculture environments, oxidation-reduction potential (ORP or REDOX) measurements need to be accurate and concise. The quality of the biological environment is dependent upon accurate ORP measurements. Even the smallest of deviations can indicate a possible increase in pollutants or a decrease in oxygen levels. AlpHa offers robust and accurate oxidation-reduction potential sensors, which are ideal for taking measurements in aquaculture, agriculture, and hydroponics.

Applications of Oxidation-Reduction Potential Sensors in Aquaculture and Agriculture

In fish farming facilities, ORP sensors are utilized to monitor the nitrification reaction status to avoid an ammonia spike that can be deadly to fish or other aquatic life. Additionally in aquarium systems, ORP is associated with the nitrogen cycle to determine baselines and trends.

Oxidation-Reduction Potential in Aquaculture, Agriculture, & Hydroponics

ORP Sensor Capabilities

  • Full Range: -1999 to +1999 mV (meter dependent)
  • Accuracy: ±0.1 mV (meter dependent)
  • Temperature Range: -5 to 135°C
  • Warranty: 12 Months

Configuration Options

  • Form Factor
    • 12 mm
    • Cartridge
    • Process Body
    • Custom Options Available
  • Housing Material Options
    • PVC / CPVC
    • Ryton® (PPS)
    • ABS
    • Epoxy
    • Polycarbonate
    • Kynar® (PVDF)
    • Polyethylene
    • PEEK
    • Teflon™ (PTFE)
    • Ultem® (PEI)
    • Glass
    • Metal
      • Stainless Steel
      • Other Metals Available
  • Thermistor Options
    • PT100 (type A & B)
    • PT1000
    • 10 kohm
    • 30 kohm
    • 100 kohm
    • Any commercially available thermistors and custom options
    • Common temperature accuracy is ±0.3°C and can vary based on thermistor option chosen
  • Reference System
    • Ag / AgCl
    • Differential
    • Custom Options Available
  • Reference Junction Options
    • Double Junction
    • Single Junction
    • Custom Options Available
  • Reference Junction Material / Design
    • Porous Plastic (PTFE / HDPE / PP)
    • Ceramic Pin / Annular / Disc
    • Fiber / Pellon
    • Sleeve Junction / Free Flow (liquid / liquid or ground glass joint)
    • Open Aperture 
    • Solid State
    • Custom Options Available
  • Solution Ground
    • Integrated in Thermowell
    • Integrated in Body Housing
    • Stand-alone
    • Custom Options Available
  • Reference Electrolyte
    • Sealed
      • Soft Gel
      • Solid Gel
    • Refillable
      • Liquid
      • Soft Gel
    • Custom Options Available
  • ORP Sensor Shape 
    • Disc
    • Single Band
    • Double Band
    • Pin
  • ORP Sensor Material
    • Platinum
    • Gold
    • Silver
    • Custom Options Available
  • Integrated Insertions
    • 3/4" NPT
    • 1/2" NPT
    • 1" NPT
    • PG 13.5
    • Custom Options Available

Communication and Connection Options

  • Analog
    • Millivolts
    • 4 – 20 mA
    • 0 – 5 V
    • 0 – 10 V
    • Custom Options Available
    • Custom options available with preamp capabilities
  • Digital
    • RS-485 MODBUS RTU
    • Custom Options Available 
  • Connectors
    • Integrated Connectors (detachable or cableless)
      • S7
      • S8
      • Integrated BNC
      • Variopin
      • Custom Options Available 
    • Connectors with Cables (including temperature)
      • BNC
      • DIN
      • MOLEX
      • Mil-spec
      • 2.5 mm / 3.5 mm phono
      • RCA
      • Spade Lugs
      • Tinned Leads
      • LEMO
      • Circular connectors
      • Any commercially available connectors and custom options available